#include<stdio.h>
struct square{
    int edge;
    int area;
    
};
int main()

{
    struct square s;
    scanf("%d", &s.edge);
    if(s.egde <= 0)
    {
        printf("Invalid input");
        return 0;
    }
    s.area = s.edge * s.edge;
    printf("%d square meters", s.area);
    return 0;
}