#include <iostream> #include<cstring> #include <stdlib.h> using namespace std; char c1, c2, n[100]; int main() { while(true) { cin>>n>>c1>>c2; if (n[0]=='0' and c1=='0' and c2=='0') break; for(int i=0; i<strlen(n); i++) if(n[i]==c1) n[i]=c2; cout<<atoi(n)<<"\n"; } return 0; }