#include<iostream> int main(){ for(int i=1000;i<=9999;i++)if((i%100+i/100)*(i%100+i/100)==i)std::cout<<i<<" "; }

for i in range(1000, 10000): a = i // 100 b = i % 100 if (a + b) ** 2 == i: print(i, end=' ')