View Code of Problem 22

#include<bits/stdc++.h>
using namespace std;

int main() {

	string n1,n2;
	while(getline(cin,n1)){
		getline(cin,n2);
		vector<char> v;
		for(int i=0;i<n1.length();i++){
			char c=n1[i];
			if(n2.find(c)!=-1){
				v.push_back(c);
				int k=n2.find(c);
				n2.erase(k,1);
			}
		}
		sort(v.begin(),v.end());
		for(int i=0;i<v.size();i++){
			cout<<v[i];
		}cout<<endl;
	} 


	return 0;
}