// editor1
#include<stdio.h>
struct square
{
    int eadge;
    int area;
};
int main()
{
    struct squrie s;
    scanf("%d",&s.edge);
    if(s.edge<=0)
    {
        printf("Invalid intput");
        return 0;
    }
    s.atea=s.edge*s.edge;
    printf("%d squere metets",s.area);
    return 0;
}