• + 0 comments

    without regex:

    s = input()
    k = input()
    i = 0
    while True:
        if k in s[i:]:
            i += s[i:].index(k)
            print((i, i + len(k) - 1))
            i += 1
        else:
            break
    if i == 0:
        print((-1, -1))