#include <stdio.h>
#include <math.h>
int main() {
double a, b, c;
scanf("%lf %lf %lf", &a, &b, &c);
if (a<=b+c && b<=a+c && c<=b+a)
{
if (a==b+c || b==c+a || c==a+b || a==0 || b==0 || c==0)
printf("Треугольник нулевой площади");
else if (a==b && b==c && c==a)
printf("Равносторонний");
else if (a==b ^ b==c ^ c==a)
printf("Равнобедренный");
else printf("Разносторонний");
}
else printf("Не треугольник");
return 0;
}
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