#include <stdio.h>

int main(void){
    char s[11],tmp;
    int a,b;
    
    scanf("%s",s);
    scanf("%d %d",&a,&b);
    
    tmp = s[a];
    s[a] = s[b];
    s[b] = tmp;
    
    printf("%s\n",s);
    return 0;
}