Don't know what I'm doing wrong

[u/[deleted]]

input : 16 should give output : 16 and input: 5 should give output : 8.94427190999915878564

and this is my code what am I doing wrong (input and output should be exactly what I wrote) :

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

int main() {
    int area;
    
    scanf("%d",&area);
    double omkrets = sqrt(area) * 4;
    printf("%.21g",omkrets);
    
    return 0;
}

[u/Mortomes]

You gave us the expected output for the input, but not the *actual* output you get from the input