Re:>>17
参考：
(C1) for x:1 thru 100 do for y:x thru 100 do for z:y thru 100 do if (x+y+z)**2-x*y*z=0 then print(x,y,z);
5 20 25
5 25 45
5 45 100
6 12 18
6 18 48
8 8 16
8 16 72
9 9 9
9 9 36
(D1) DONE