#include <stdio.h>

void main(void) {
	char str[100] = "a" ; 
	scanf("%s ",str);
	int changeNumA = 0 , changeNumB = 0;
	scanf("%d %d",&changeNumA ,&changeNumB);
	char num = str[changeNumA];
	str[changeNumA] = str[changeNumB];
	str[changeNumB] = num;

	printf("%s",str);

}