#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");
}
else
{
    s.area = s.edge * s.egde;
    printf("%d square meters",s.area);
}
return 0;
}