| # |
ID |
ODE |
Solved? |
Maple |
Mma |
Sympy |
time(sec) |
| 24401 |
\begin{align*}
y^{\prime \prime } x -y^{\prime }+4 x^{3} y&=8 x^{3} \sin \left (x \right )^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
29.847 |
|
| 24402 |
\begin{align*}
y^{\prime } x +y-\frac {y^{2}}{x^{{3}/{2}}}&=0 \\
y \left (1\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
29.856 |
|
| 24403 |
\begin{align*}
y x -\left (x^{2}-y^{2}\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
29.889 |
|
| 24404 |
\begin{align*}
y^{\prime }&=-\frac {x}{2}+\frac {\sqrt {x^{2}+4 y}}{2} \\
y \left (0\right ) &= -1 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
29.901 |
|
| 24405 |
\begin{align*}
y^{\prime }&=t +y^{2} \\
y \left (0\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
29.905 |
|
| 24406 |
\begin{align*}
4 x^{2} y^{\prime \prime }+4 y^{\prime } x +\left (-x^{2}+2 \left (1-m +2 l \right ) x -m^{2}+1\right ) y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
29.909 |
|
| 24407 |
\begin{align*}
2 t y \,{\mathrm e}^{t^{2}}+2 t \,{\mathrm e}^{-y}+\left ({\mathrm e}^{t^{2}}-t^{2} {\mathrm e}^{-y}+1\right ) y^{\prime }&=0 \\
y \left (0\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
29.916 |
|
| 24408 |
\begin{align*}
\left (\operatorname {b2} x +\operatorname {a2} \right ) y+\operatorname {a1} x y^{\prime }+x^{3} y^{\prime \prime }&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
29.920 |
|
| 24409 |
\begin{align*}
y \left (x -y-2\right )+x \left (-x +y+4\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
29.924 |
|
| 24410 |
\begin{align*}
r^{\prime }&=\sqrt {r t} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
29.933 |
|
| 24411 |
\begin{align*}
x^{\prime \prime }+x&=\left \{\begin {array}{cc} \cos \left (t \right ) & 0\le t <\pi \\ 0 & \pi \le t \end {array}\right . \\
x \left (0\right ) &= 0 \\
x^{\prime }\left (0\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
29.934 |
|
| 24412 |
\begin{align*}
y^{\prime }&={\mathrm e}^{-t^{2}}+y^{2} \\
y \left (0\right ) &= 0 \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
29.951 |
|
| 24413 |
\begin{align*}
y^{\prime }-\frac {y}{x}&=y^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
29.960 |
|
| 24414 |
\begin{align*}
y^{2} {\mathrm e}^{y x}+\cos \left (x \right )+\left ({\mathrm e}^{y x}+x y \,{\mathrm e}^{y x}\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
29.974 |
|
| 24415 |
\begin{align*}
5 v-u +\left (3 v-7 u \right ) v^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.001 |
|
| 24416 |
\begin{align*}
x^{\prime }&=\frac {\sec \left (t \right )^{2}}{\sec \left (x\right ) \tan \left (x\right )} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.030 |
|
| 24417 |
\begin{align*}
\left (x \cos \left (y\right )+\cos \left (x \right )\right ) y^{\prime }-\sin \left (x \right ) y+\sin \left (y\right )&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.040 |
|
| 24418 |
\begin{align*}
x^{2} y^{\prime \prime }+5 y^{\prime } x +4 y&=\ln \left (x \right ) \left (\frac {1}{x^{3}}+\frac {1}{x^{5}}\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.045 |
|
| 24419 |
\begin{align*}
3 y^{2} y^{\prime } x -2 y^{3}&=x^{3} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.066 |
|
| 24420 |
\begin{align*}
x \left (x^{2}-y x -y^{2}\right ) y^{\prime }&=\left (x^{2}+y x -y^{2}\right ) y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.070 |
|
| 24421 |
\begin{align*}
4 y^{\prime \prime } x +4 y-\left (2+x \right ) y+l y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.104 |
|
| 24422 |
\begin{align*}
2 t +3 x+\left (2+x\right ) x^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.129 |
|
| 24423 |
\begin{align*}
y^{\prime }&=-\left (1+k \right ) x^{k} y^{2}+a \,x^{1+k} \cos \left (x \right )^{m} y-a \cos \left (x \right )^{m} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.144 |
|
| 24424 |
\begin{align*}
a y \sqrt {1+{y^{\prime }}^{2}}-2 y y^{\prime } x +y^{2}-x^{2}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.151 |
|
| 24425 |
\begin{align*}
x -2+4 \left (x +y-1\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.152 |
|
| 24426 |
\begin{align*}
x^{2}+y^{2}+2 y y^{\prime } x&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.153 |
|
| 24427 |
\begin{align*}
y^{\prime \prime } x +\left (x +a +b \right ) y^{\prime }+a y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.183 |
|
| 24428 |
\begin{align*}
x +y-4-\left (3 x -y-4\right ) y^{\prime }&=0 \\
y \left (4\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.213 |
|
| 24429 |
\begin{align*}
x^{2} y^{\prime \prime }-3 y^{\prime } x +y&=\frac {\ln \left (x \right ) \sin \left (\ln \left (x \right )\right )+1}{x} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.225 |
|
| 24430 |
\begin{align*}
x +2 y-4-\left (-5+2 x +y\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.247 |
|
| 24431 |
\begin{align*}
2 x -3 y+1-\left (3 x +2 y-4\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.272 |
|
| 24432 |
\begin{align*}
\left (x -y\right ) y^{\prime }&=y \left (2 y x +1\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.276 |
|
| 24433 |
\begin{align*}
y^{\prime }+\frac {y}{x}&=2 x^{{3}/{2}} \sqrt {y} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.321 |
|
| 24434 |
\begin{align*}
x^{2} y^{\prime \prime }-2 y^{\prime } x +2 y&=x \,{\mathrm e}^{-x} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.336 |
|
| 24435 |
\begin{align*}
x^{2}+y^{2}+2 y y^{\prime } x&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.347 |
|
| 24436 |
\begin{align*}
\frac {2 y x -1}{y}+\frac {\left (x +3 y\right ) y^{\prime }}{y^{2}}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.359 |
|
| 24437 |
\begin{align*}
y^{\prime \prime }+{\mathrm e}^{x} y^{\prime }+\left (x +1\right ) y&=0 \\
y \left (1\right ) &= 0 \\
y^{\prime }\left (1\right ) &= 0 \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
30.376 |
|
| 24438 |
\begin{align*}
y^{\prime } \left (\cos \left (y\right )-\sin \left (\alpha \right ) \sin \left (x \right )\right ) \cos \left (y\right )+\left (\cos \left (x \right )-\sin \left (\alpha \right ) \sin \left (y\right )\right ) \cos \left (x \right )&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.410 |
|
| 24439 |
\begin{align*}
\left (a x +b \right ) y^{\prime \prime }+s \left (c x +d \right ) y^{\prime }-s^{2} \left (\left (a +c \right ) x +b +d \right ) y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.415 |
|
| 24440 |
\begin{align*}
y^{\prime }+y^{2}+a \,x^{m}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.421 |
|
| 24441 |
\begin{align*}
y^{\prime }&=-\frac {-y x -y+x^{2} \sqrt {x^{2}+y^{2}}-x \sqrt {x^{2}+y^{2}}\, y}{x \left (x +1\right )} \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.427 |
|
| 24442 |
\begin{align*}
y^{\prime }&=\frac {y}{x}-\frac {x}{y} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.430 |
|
| 24443 |
\begin{align*}
\sin \left (x \right ) \tan \left (y\right )+1+\cos \left (x \right ) \sec \left (y\right )^{2} y^{\prime }&=0 \\
\end{align*} |
✓ |
✗ |
✓ |
✗ |
30.467 |
|
| 24444 |
\begin{align*}
y^{\prime }&=-\left (1+k \right ) x^{k} y^{2}+a \,x^{1+k} \cot \left (x \right )^{m} y-a \cot \left (x \right )^{m} \\
\end{align*} |
✓ |
✓ |
✗ |
✗ |
30.473 |
|
| 24445 |
\begin{align*}
x -y-1+\left (4 y+x -1\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.477 |
|
| 24446 |
\begin{align*}
\left (x -2 y\right ) y^{\prime }+2 x +y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.503 |
|
| 24447 |
\begin{align*}
y^{\prime } x&=y \left (\ln \left (y\right )-\ln \left (x \right )\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.516 |
|
| 24448 |
\begin{align*}
y^{\prime \prime }+\sin \left (y\right )&=0 \\
y \left (0\right ) &= 0 \\
y^{\prime }\left (0\right ) &= 2 \\
\end{align*} |
✓ |
✓ |
✗ |
✗ |
30.570 |
|
| 24449 |
\begin{align*}
2 y^{\prime } x&=2 x^{3}-y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.641 |
|
| 24450 |
\begin{align*}
x^{2}+y^{2}-2 y y^{\prime } x&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.672 |
|
| 24451 |
\begin{align*}
\left (a \,x^{2}+b \right ) y^{\prime \prime }+\left (c \,x^{2}+d \right ) y^{\prime }+\lambda \left (\left (-a \lambda +c \right ) x^{2}+d -b \lambda \right ) y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.699 |
|
| 24452 |
\begin{align*}
\frac {y x +1}{y}+\frac {\left (-x +2 y\right ) y^{\prime }}{y^{2}}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.701 |
|
| 24453 |
\begin{align*}
3 y^{\prime }+\frac {2 y}{x}&=4 \sqrt {y} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.707 |
|
| 24454 |
\begin{align*}
x -y+1+\left (2 y-2 x +3\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.712 |
|
| 24455 |
\begin{align*}
x^{2}+y^{2}&=2 y y^{\prime } x \\
y \left (-1\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.746 |
|
| 24456 |
\begin{align*}
y^{\prime } x&=a \,x^{2 n +m} y^{2}+\left (x^{n +m} b -n \right ) y+c \,x^{m} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.746 |
|
| 24457 |
\begin{align*}
3 x +y+\left (x +3 y\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.754 |
|
| 24458 |
\begin{align*}
y^{2} {y^{\prime }}^{2}+2 y y^{\prime } x +a y^{2}+b x +c&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.757 |
|
| 24459 |
\begin{align*}
\frac {-x +y}{\left (x +y\right )^{3}}-\frac {2 x y^{\prime }}{\left (x +y\right )^{3}}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.781 |
|
| 24460 |
\begin{align*}
y y^{\prime }&=\left (a x +3 b \right ) y+c \,x^{3}-a b \,x^{2}-2 b^{2} x \\
\end{align*} |
✗ |
✓ |
✗ |
✗ |
30.793 |
|
| 24461 |
\begin{align*}
2 x^{2} \cos \left (y\right ) y^{\prime \prime }-2 x^{2} \sin \left (y\right ) {y^{\prime }}^{2}+x \cos \left (y\right ) y^{\prime }-\sin \left (y\right )&=\ln \left (x \right ) \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.802 |
|
| 24462 |
\begin{align*}
y^{\prime \prime }+4 \tan \left (x \right ) y^{\prime }-y x&=0 \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
30.803 |
|
| 24463 |
\begin{align*}
y y^{\prime }-a \left (1-\frac {b}{\sqrt {x}}\right ) y&=\frac {a^{2} b}{\sqrt {x}} \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.812 |
|
| 24464 |
\begin{align*}
a x y y^{\prime }+x^{2}-y^{2}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.822 |
|
| 24465 |
\begin{align*}
y y^{\prime }+a \left (2 b x +1\right ) {\mathrm e}^{b x} y&=-a^{2} b \,x^{2} {\mathrm e}^{2 b x} \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.835 |
|
| 24466 |
\begin{align*}
y^{\prime }&=\frac {-x^{2}+x +2+2 x^{3} \sqrt {x^{2}-4 x +4 y}}{2 x +2} \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.839 |
|
| 24467 |
\begin{align*}
\left (a_{2} x +b_{2} \right ) y^{\prime \prime }+\left (a_{1} x +b_{1} \right ) y^{\prime }+\left (a_{0} x +b_{0} \right ) y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.850 |
|
| 24468 |
\begin{align*}
y^{\prime } x +a y^{2}-b y-c \,x^{\beta }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.865 |
|
| 24469 |
\begin{align*}
y^{\prime \prime } x +\left (a x +b +n \right ) y^{\prime }+n a y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
30.866 |
|
| 24470 |
\begin{align*}
x^{\prime \prime }+p \left (t \right ) x^{\prime }+q \left (t \right ) x&=0 \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
30.873 |
|
| 24471 |
\begin{align*}
y^{\prime } x +y&=2 \sqrt {y x} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
30.916 |
|
| 24472 |
\begin{align*}
\left (x^{2}+a \right )^{2} y^{\prime \prime }+b \,x^{n} \left (x^{2}+a \right ) y^{\prime }-m \left (b \,x^{n +1}+\left (m -1\right ) x^{2}+a \right ) y&=0 \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
30.920 |
|
| 24473 |
\begin{align*}
\left (x +y\right )^{2} y^{\prime }&=x^{2}-2 y x +5 y^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
30.967 |
|
| 24474 |
\begin{align*}
y^{\prime }&=\frac {2 x -y}{x +4 y} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.016 |
|
| 24475 |
\begin{align*}
8 y&={y^{\prime }}^{2}+3 x^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
31.028 |
|
| 24476 |
\begin{align*}
2 x +3 y-5+\left (3 x +2 y-5\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.072 |
|
| 24477 |
\begin{align*}
y^{\prime }&=\frac {-3 x^{2} y-y^{2}}{2 x^{3}+3 y x} \\
y \left (1\right ) &= -2 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
31.077 |
|
| 24478 |
\begin{align*}
y^{\prime }&={\mathrm e}^{-t^{2}}+y^{2} \\
y \left (1\right ) &= 0 \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
31.097 |
|
| 24479 |
\begin{align*}
y^{\prime }&=\left (a \cosh \left (\lambda x \right )^{2}-\lambda \right ) y^{2}+a +\lambda -a \cosh \left (\lambda x \right )^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
31.104 |
|
| 24480 |
\begin{align*}
x \left (x +y\right ) y^{\prime }&=x^{2}+y^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
31.116 |
|
| 24481 |
\begin{align*}
x +y-\left (x -y+2\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.118 |
|
| 24482 |
\begin{align*}
t y-y^{2}+t \left (t -3 y\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.120 |
|
| 24483 |
\begin{align*}
x y^{\prime } \sqrt {-a^{2}+x^{2}}&=y \sqrt {y^{2}-b^{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.164 |
|
| 24484 |
\begin{align*}
t^{2} i^{\prime \prime }+2 i^{\prime } t +i&=t \ln \left (t \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.173 |
|
| 24485 |
\begin{align*}
y^{\prime \prime }+3 y^{\prime }+\frac {y}{t}&=t \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
31.183 |
|
| 24486 |
\begin{align*}
y^{\prime }&=\frac {x +y-1}{x -y-1} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
31.201 |
|
| 24487 |
\begin{align*}
\left (x -a \right )^{2} y^{\prime }+k \left (x +y-a \right )^{2}+y^{2}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.245 |
|
| 24488 |
\begin{align*}
\cos \left (x \right ) y^{\prime \prime }+y&=\sin \left (x \right ) \\
\end{align*} |
✗ |
✓ |
✗ |
✗ |
31.252 |
|
| 24489 |
\begin{align*}
y^{\prime }&=\left (a \sinh \left (\lambda x \right )^{2}-\lambda \right ) y^{2}-a \sinh \left (\lambda x \right )^{2}+\lambda -a \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
31.378 |
|
| 24490 |
\begin{align*}
x^{\prime \prime }+x^{\prime }+x-x^{3}&=0 \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
31.415 |
|
| 24491 |
\begin{align*}
y^{2}-3 y x -2 x^{2}+\left (y x -x^{2}\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.425 |
|
| 24492 |
\begin{align*}
y^{\prime } x +y \ln \left (x \right )&=y \ln \left (y\right )+y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.458 |
|
| 24493 |
\begin{align*}
x^{7} y y^{\prime }&=2 x^{2}+2+5 x^{3} y \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
31.460 |
|
| 24494 |
\begin{align*}
y y^{\prime } x +2 x +\frac {y^{2}}{2}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.490 |
|
| 24495 |
\begin{align*}
y^{2} x^{2}-2 y+\left (x^{3} y-x \right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.510 |
|
| 24496 |
\begin{align*}
-y+2 y^{\prime } x +x^{3} y^{\prime \prime }&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
31.553 |
|
| 24497 |
\begin{align*}
3 x^{2} y+y^{3}+\left (x^{3}+3 x y^{2}\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
31.569 |
|
| 24498 |
\begin{align*}
\sec \left (x \right )^{2} \tan \left (y\right ) y^{\prime }+\sec \left (y\right )^{2} \tan \left (x \right )&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.601 |
|
| 24499 |
\begin{align*}
-a y-y^{\prime } x +y^{\prime \prime }&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
31.607 |
|
| 24500 |
\begin{align*}
\sin \left (y\right )^{2}+t \sin \left (2 y\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
31.626 |
|