#include <iostream>
#include <cstdio>
#include <algorithm>

using namespace std;

int main()
{
    double A = 0, B = 0, C = 0;
    scanf("%lf %lf %lf", &A, &B, &C);
    // printf("%.1lf%.1lf%.1lf", A, B, C);?
    printf("TRIANGULO: %.3lf\n", A * C / 2);
    printf("CIRCULO: %.3lf\n", 3.14159 * C * C);
    printf("TRAPEZIO: %.3lf\n", (A + B) * C / 2);
    printf("QUADRADO: %.3lf\n", B * B);
    printf("RETANGULO: %.3lf\n", A * B);
    return 0;
}