problem no: 1146A sub id: 128881280 code:
include
include
include
include
include<bits/stdc++.h>
using namespace std;
int main() { string a; int res; cin>>a;
int c=count(a.begin(),a.end(),'a');
int len=a.size(); int val=len-c;
if(val<c) res=val+c; else res=val-c;
cout<<res;
}