#include <stdio.h>
int main(void){
	char S[11];
	int i,j;
	int change;
	
	scanf("%s",S);
	scanf("%d %d",&i,&j);
	
	change = S[i];
	S[i] = S[j];
	S[j] = change;
	
	printf("%s\n",S);
	return 0;
}