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