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


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

  char c=s[i];
  s[i]=s[j];
  s[j]=c;


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


/// confirm df==0 ///