#include <stdio.h>
#include <math.h>
int main(void)
{
    double x;
    if (scanf("%lf", &x) != 1 || !(x > 0.0 && x <= 100.0)) {
        puts("Enter a positive value up to 100.");
        return 1;
    }
    printf("sqrt = %.2f\n", sqrt(x));
    printf("pow(x, 2) = %.2f\n", pow(x, 2.0));
    printf("ceil = %.2f\n", ceil(x));
    printf("floor = %.2f\n", floor(x));
    printf("fabs(-x) = %.2f\n", fabs(-x));
    printf("log = %.2f\n", log(x));
    return 0;
}