def solve():
    s = input()
    li = []
    for idx in range(len(s)):
        li.append(s[idx])

    line = input().split(" ")
    i = int(line[0])
    j = int(line[1])

    buf = li[i]
    li[i] = li[j]
    li[j] = buf

    ans = ""
    for idx in range(len(li)):
        ans += li[idx]

    print(ans)


solve()