\[\begin{array}{l} {\text{Проверьте верность равенства:}} \hfill \\ {61^4} + {56^4} + {26^4} + {4^4} = \hfill \\ {62^4} + {47^4} + {46^4} + {8^4} = \hfill \\ {67^4} + {44^4} + {22^4} + {8^4} = {17^6}. \hfill \\ \end{array}\]