// editor1
#include<stdio.h>
typedef struct {
    double edgelength;
    double area;
} SquareUnit ;
SquareUnit calculateCoverageArea(double edgelength){
    SquareUnit unit;
    unit.edgelength=edgelength;
    unit.area=edgelength * edgelength;
    return unit;
}
int main(){
    double edgelength;
    scanf("%lf",&edgelength);
    SquareUnit unit = calculateCoverageArea(edgelength);
    printf("%.2llf  square meters",unit.area);
    return 0;
}