#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;
}