#include #include #include #include #include #include #include #include #include #include #define ll long long #define db double using namespace std; ll tt,x; void solve() { scanf("%lld",&x); bool ans = 0; for (ll i = 1;2 * i * i <= x;i++) { ll l = 2; ll r = x - i * i; while(l <= r) { ll mid = (l + r) >> 1; if (mid * mid + i * i <= x) { l = mid + 1; } else { r = mid - 1; } } if (i * i + r * r == x) { ans = 1; break; } } if (ans) { printf("Yes"); } else { printf("No"); } } int main() { tt = 1; while(tt) { solve(); tt--; } return 0; }