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

int main() {
    struct square s;
    sacanf("%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;
}