#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;
}