#include <iostream>
#include<cstring>
#include<fstream>
using namespace std;
char s[101],a[11],b[11],*p,t[101];

int main()
{  ifstream fin("inlocuirecuvant.in");
   ofstream fout("inlocuirecuvant.out");
fin>>a;
fin>>b;
fin.get();
fin.getline(s,101);
p=strtok(s," ");
while(p)
{
    if(strcmp(p,a)==0)
        strcat(t,b);
    else
        strcat(t,p);
    strcat(t," ");
    p=strtok(NULL," ");
}
   fout<<t;

    return 0;
}