#include<stdio.h> #include<cstring> using namespace std; char s[100]; long c1, c2, i, ls, g; int main() { while (1) { scanf("%s %ld %ld",s,&c1,&c2); if ((s[0]=='0')&&(c1==0)&&(c2==0)&&(strlen(s)==1)) break; ls=strlen(s); g=0; for (i=0;i<ls;i++) { if ((s[i]-'0'==c1)) { if ((c2!=0)||(g)) { printf("%ld",c2); g=1; } } else if ((s[i]!='0')||(g)) { printf("%c",s[i]); g=1; } } if (!g) printf("0"); printf("\n"); } return 0; }