#include <iostream>
using namespace std;

int main()
{
    int n,c1,c2,x,nr;
    nr=0;
    cin>>n;
    cin>>c1;
    cin>>c2;
    if(n==0 && c1==0 && c2==0)
        return 0;
    else
    {   while(n!=0)
        {
            x=n%10;
            if(x==c1) x=c2;
            nr=nr*10+x;
            n=n/10;
        }
        while(nr!=0)
        {
            n=n*10+nr%10;
            nr=nr/10;
        }
    }
    cout<<n;
}