[백준_JAVA] 3052 나머지

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int[] A = new int[10];
		int count = 0;
		boolean b;
		
		for(int i = 0; i < A.length; i++) {
			A[i] = sc.nextInt() % 42;
		}
		for(int i = 0; i < A.length; i++) {
			b = false;
			
			for(int j = i+1; j < A.length; j++) {
				if(A[i] == A[j]) {
					b = true;
					break;
				}
			}
			if(b == false)
				count++;
		}
		
		System.out.println(count);
		sc.close();
	}
}