#include <stdio.h>
#include <math.h>
#define N 4
int main()
{
    long double a[N];
    long double b[N];
    int i = 0;
    while(i < N)
    {
        scanf("%Lf",&a[i]);
        b[i]=sqrt((long double)a[i]);
        i++;
    }
    if(i == N)
    for(i= N - 1; i>=0; i--)
    {
        printf("%.4Lf\n", b[i]);
    }


}


seems to return the right values. But writes "Wrong answer". Thanks!