#include<stdio.h>
int main()
{
    int n;
    scanf("%d",&n);
    int ok = 0;
    for(int i=1; i<=10000 && !ok; i++) {
        for(int j=1; j<=10000 && !ok; j++) {
            int val = i*i + j*j;
            if(val > n) break;
            if(val == n) ok  = 1;
        }
    }
    if(ok) printf("Yes");
    else printf("No");
    printf("\n");
}