holes in the text wrong answer

#include <stdio.h>
#include <string.h>

int main()
{
    int hole=0;
    int i;
    char word[100];

    scanf("%s",&word);
    fflush(stdin);

    i=strlen(word);

    for(i=0;i<=40;i++)
    {
        if(word[i]=='A' || word[i]=='D' || word[i]=='O' || word[i]=='P' || word[i]=='R' || word[i]=='Q' )
        {
            hole++;
        }

        if(word[i]=='B')
        {
            hole+=2;
        }

        if(word[i]>=0 && word[i]<=9)
        {
            break;
        }

    }
        printf("%d",hole);

    getchar();
    return 0;

}