#include<stdio.h>

int main(void){
    
    int i,j;
    char S[10];
    
    scanf("%s",S);
    scanf("%d%d",&i,&j);
    
    char s;
    
    s=S[i];  S[i]=S[j];  S[j]=s;
    
    printf("%s\n",S);
    
    return 0;
}