#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]);
    }
    int c;
    c=len(arr[i]);
    printf("%d",c);
    return 0;
}