#include<stdio.h>
int main()
{
    int total_count,i;
    scanf("%d",&total_count);
    int arr[5]={};
    for(i=1;i<5;i++)
    {
        scanf("%d",&arr[i]);
    }
    
    if(total_count>0)
    {
    else if(total_count=5)
    {
    int c=4;
    printf("%d",c);
    }
    else if(total_count=4)
    {
        int d=1;
        printf("%d",d);
    }
    }
    else if (total_count<0)
    {
        printf("Invalid input");
    }
    return 0;
}