#include <iostream> #include <cstring> using namespace std; int main() { char ar[200],a,b; int a_1; cin>>ar; a_1=strlen(ar); cin>>a>>b; for(int i=1; i<=a_1-1; i++) { if(ar[i]==a){ ar[i]=b; } } for(int i=1;i<=a_1-1;i++){ cout<<ar[i]<<" "; } return 0; }