#include <stdio.h>

int main()
{
    double a, b, c;
    scanf("%lg%lg%lg", &a, &b, &c);
    if (a*a + b*b == c*c) {
        printf("That's a right-angled triangle\n");
    } else {
        printf("That is not a right-angled triangle\n");
        printf("a**2 + b**2 = %lg\n", a * a + b * b);
        printf("   c**2     = %lg\n", c * c);
    }
    return 0;
}


/*

input:  3.33 4.44 5.55
output: That is not a right angled triangle
        a**2 + b**2 = 30.8025
           c**2     = 30.8025

 */