#include <stdio.h>
#include <stdbool.h>

int main()
{
    int a, b, c = 0;
	
	printf("3 tamsayı giriniz: ");
	scanf("%d\n, %d\n, %d\n", &a, &b, &c);
	
	if ( a == b && b == c){
		printf("3\n");
	}
	
	else if ( a == b || b == c || a == c ){
		printf("2\n");
	}
	else{
		printf("0\n");
	}
	
	return 0;
}