import java.lang.System;
import java.util.Arrays;
import java.util.Scanner; // 데이터를 읽어오는 기능을 제공하는 패키지(라이브러리)
import java.util.stream.IntStream; // 배열 안에 문자열이 있는지 확인하기 위한 메소드를 제공하는 패키지
 
public class Main
{
    public static void main(String[] args) // 프로그램 시작할때 스트링형 배열 args(배열 이름)으로 값을 받을 수 있다.
    {
        Scanner scan = new Scanner(System.in); // Scanner 클래스 형식의 scan이라는 변수 생성 후, 키보드와 같은 표준 입력을 받는
        //Scanner 클래스 객체를 새로 생성한다.
        int[] arr = new int[10]; // 10개짜리 1차원 배열 생성
        int[] arr2 = new int[10];
        int namozi, count = 0;
 
        for(int i = 0; i < 10 ; i++)
        {
            arr[i] = scan.nextInt(); // 정수 입력
 
            if (arr[i] == 42)
            {
                namozi = -1; // 숫자 배열에는 0이 들어가지 못하므로 대신 -1 대입
            }
            else
            {
                namozi = arr[i] % 42;
            }
 
            int finalNamozi = namozi;
            if(!(IntStream.of(arr2).anyMatch(x -> x == finalNamozi))) // 동시성 문제를 방지하기 위해 동적으로 변경되는
                // 지역변수를 final로 사실상 최종적인 변수로 변환
            {
                arr2[i] = finalNamozi;
                count++;
            }
        }
        System.out.print(count);
 
        return;
    }
}

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