#include <iostream>
#include <string>
using namespace std;
int main(){
string s = "abdfabcdface";
string ss;
for(int i = 0;i < s.length();i ++){
if(s.at(i) != 'a'){
ss.insert(ss.end(),s.at(i));
}
}
cout<<s<<endl<<"Remove a :"<<endl;
cout<<ss<<endl;
return 0;
}