public class numUnique {
//Create main method.
	public static void main(String [] args) {
		//Enter the three values.
		unique(6, 7, 6);
	}
	public static int unique(int x, int y, int z) {
		//Create if-else statement.
		//If all are identical.
		if (x == y && x == z) {
			System.out.print("1");
			return 1;
		}
		//If all are unique.
		else if (x != y && x != z && y != z){
			System.out.print("3");
			return 3;
		}
		//If two are the same.
		else {
			System.out.print("2");
			return 2;
		}
	}
}