// yukicoder: No.729 文字swap
// 2019.5.3 bal4u

#include <stdio.h>

#if 1
#define gc() getchar_unlocked()
#define pc(c) putchar_unlocked(c)
#else
#define gc() getchar()
#define pc(c) putchar(c)
#endif
int in()    // 非負整数の入力
{
	int n = 0, c = gc();
	do n = 10 * n + (c & 0xf), c = gc(); while (c >= '0');
	return n;
}

void ins(char *s)  // 文字列の入力　スペース以下の文字で入力終了
{
	char *p = s;
	do *s = gc();
	while (*s++ > ' ');
	*--s = 0;
}

void outs(char *s) { while (*s) pc(*s++); }

char S[15];

int main()
{
	int i, j, t;
	ins(S), i = in(), j = in();
	t = S[i], S[i] = S[j], S[j] = t;
	outs(S), pc('\n');
	return 0;
}