#include <stdio.h>
#include <math.h>

int main() {
    int N;
    scanf("%d", &N);

    double R[N];
    for(int i=0; i<N; i++){
        scanf("%lf", &R[i]);
        R[i]=sqrt(R[i]);
        printf("%f\n", R[i] );
    }
    return 0;
}

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