#include<stdio.h>
#include<stdlib.h>
#define df 0


int main(){
  int i,j;
  char s[20];
  scanf("%s",s);
  scanf("%d%d",i,j);
  int c=s[i];
  s[i]=s[j];
  s[j]=c;

  printf("%s\n",s);
  return 0;
}


/// confirm df==0 ///