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- #include <bits/stdc++.h>
- using namespace std;
- #define ll long long
- #define test int t; cin>>t; for(int cs=1;cs<=t;cs++)
- int main()
- {
- ios_base::sync_with_stdio(0);
- cin.tie(0);cout.tie(0);
- test
- {
- map<char,char>x;
- string a;
- char b,c;
- x.clear();
- ll n,i,j,k,l;
- cin>>a;
- cin>>n;
- for(i=0;i<a.size();i++)
- {
- x[a[i]]=a[i];
- }
- for(i=0;i<n;i++)
- {
- cin>>b>>c;
- for(char s='A';s<='Z';s++)
- {
- if(x[s]==c)
- {
- x[s]=b;
- }
- }
- }
- for(i=0;i<a.size();i++)
- {
- cout<<x[a[i]];
- }
- cout<<endl;
- }
- return 0;
- }
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