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h2022032 2023-12-30 20:07:41

include<bits/stdc++.h>

using namespace std; int main(){ string s,a,b; cin>>s; cin>>a>>b; for(int i=0;i<s.size();i++) { if(s[i]==a) { s[i]==b; } cout<<s[i]; } return 0; }