#include <stdio.h>
#include <stdlib.h>
#define N 3

int main(int argc, char *argv[]) {
	int D[N];
	int i,k;
	
	do
	{printf ("Vvedite massive:");
	  for (i=0;i<N;i++)
	  scanf("%d", &D[i]);  
    }
    while(D[i]<=0);
    k=0;
    for(i=0;i<N;i++)
     {
     
      if(D[0]==D[i])
        
        k++;
    }
        if (k==N)
         printf("Mnogoygolnik ravnostoronnui");
        else 
		 printf("Mnogoygolnik ne ravnostoronnui");
	    
     
     system("PAUSE");
	return 0;
}