#include<stdio.h>
struct square
{
    int edge;
    int area;
};
int main()
{
    struct square s;
    scanf("%d",&.edge);
    if(s.edge<=0)
    {
        printf("Invalid input");
        return 0;
    }
    s.are=s.edge*s.edge;
    printf("%d square meters",s.area);
    return 0;
}