#include <stdio.h>
int main(){
    int x = 0;
    int n = 20;
    int i, j;
    for(i=0; i<n; i++)
    {
        for(i=0; i<n; i++)
        {
            for(j=0; j<n; j++)
            {
                x++;
            }
        }
    }
    printf("%d", x);
}
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