func_code_string: #include <bits/stdc++.h>   using namespace std;   const int P = 1e9 + 7, INF = 0x3f3f3f3f;   long long gcd(long long a, long long b) { return b ? gcd(b, a % b) : a; }   long long qpow(long long a, long long n) {     long long r = 1 % P;     for (a %= P; n; a = a * a % P, n >>= 1)       if (n & 1) r = r * a % P;     return r;   }   long long inv(long long first) {     return first <= 1 ? 1 : inv(P % first) * (P - P / first) % P;   }   inline int rd() {     int first = 0;     char p = getchar();     while (p <  0  || p >  9 ) p = getchar();     while (p >=  0  && p <=  9 ) first = first * 10 + p -  0 , p = getchar();     return first;   }   int main() {     int n;     scanf( %d , &n);     while (n--) {       int a, b;       scanf( %d%d , &a, &b);       long long first = (long long)a * b, t = cbrt(first) + 0.5;       puts(t * t * t == first && a % t == 0 && b % t == 0 ?  Yes  :  No );     }   }   