#include<stdio.h>
struct sqaure
{
    int edge;
    int area;
    
};
int main()
{
    struct square S;
    
        scanf("%d",&S.edge);
    
    if(S.edge<=00||S.edge<1000||S.edge>1000)
    {
    printf("Ivalid input\n");
    }
    else
    {
        S.area=S.edge*S.edge;
        printf("%d square meters \n",S.area);
        
    }
    return 0;
    
}