#include<stdio.h>
int main()
{
char ch[102];
int t,i=0,j=0,c=0;
while(t--)
{
c=0;i=0;
while(ch[i]!='\0')
{
if(ch[i]=='A'||ch[i]=='D'||ch[i]=='O'||ch[i]=='P'||ch[i]=='Q'||ch[i]=='R')
c+=1;
else if(ch[i]=='B')
c+=2;
}
}
return 0;
}
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