// editor1
#include<stdio.h>
#include<ctype.h>
int main()
{
    int N;
    scanf("%d",&N);
    if(N<0)
    {
        printf("Invalid input");
    }
    char ch;
    int evenSum=0,oddSum=0;
    for(int i=0;i<N;i++)
    {
    scanf(" %c ",&ch);
    if(!isalpha(ch))
    {
        printf("Invalid input");
        return 0;
    }
    else
    {
    
    int diff=evenSum-oddSum;
    if(diff<0)
      diff =- diff;
    printf("%d ", diff);
    }
    return 0;
}