?????? ?? ???-?????? ????? (??? ??? ?????), ??? ??? ?????’? ??????? ?? ?????? ??, ???????, ???? ?????? ???? ??? ??? ???? ????? ?? ????? ?? ??? ???? ??????? ???? ?? ???? ???

${\displaystyle p=a_{0}^{2}+a_{1}^{2}+a_{2}^{2}+a_{3}^{2}\ }$

????? ???? ???? ${\displaystyle a_{0},a_{1},a_{2},a_{3}}$ ???? ??? ??? ???? ?? ?????? ??, 3, 31 ??? 310 ??? ??? ????? ?? ??? ?? ??? ???? ?????? ??????? ???? ?? ???? ??:

${\displaystyle {\begin{aligned}3&=1^{2}+1^{2}+1^{2}+0^{2}\\[3pt]31&=5^{2}+2^{2}+1^{2}+1^{2}\\[3pt]310&=17^{2}+4^{2}+2^{2}+1^{2}.\end{aligned}}}$

?? ????? ??? 1770 ???? ???? ????? ?????? ????? ???? ???? ??? ??