PAT 乙级 1006

#include<iostream>using namespace std;int main(){int n;cin>>n;int m,sum=0;m=n;while(m){    m=m/10;   sum++;}for(int i=sum;i>=1;i--){if(i==3){for(int j=1;j<=n/100;j++)  cout<<"B";}if(i==2){for(int j=1;j<=n/10%10;j++)  cout<<"S";}if(i==1){for(int j=1;j<=n%10;j++)  cout<<j;}}cout<<endl;return 0;}