#include <stdio.h>
#include <string.h>

/*
void swap(char *a, char *b) {
    char tmp;
    strcpy(tmp, *a);
    strcpy(*a, *b);
    strcpy(*b, tmp);
}
 */


int main(void) {
    
    int i, a, b;
    char str[10];
    char tmp;
    
    scanf("%s", str);
    scanf("%d", &a);  scanf("%d", &b);
    
    tmp = str[a];
    str[a] = str[b];
    str[b] = tmp;
    
    printf("%s", str);
    
    return 0;
}