input = "cqjxjnds"

pw = [ord(c) - ord("a") for c in input]
pw[-1] += 1

part1, part2 = None, None

while not part2:
    # increment pw
    pw[-1] += 1
    for i in range(len(pw) - 1, 0, -1):
        if pw[i] >= 26:
            pw[i - 1] += 1
            pw[i] = 0
        else:
            break

    if 8 in pw:
        pw[pw.index(8)] += 1
    if 11 in pw:
        pw[pw.index(11)] += 1
    if 14 in pw:
        pw[pw.index(14)] += 1

    for i in range(len(pw) - 2):
        if pw[i] + 2 == pw[i + 1] + 1 == pw[i + 2]:
            break
    else:
        continue

    pairs = 0
    for i in range(len(pw) - 1):
        c = pw[i]
        if c == pw[i + 1] and (i == 0 or c != pw[i - 1]):
            pairs += 1
    if pairs < 2:
        continue

    if not part1:
        part1 = "".join(chr(c + ord("a")) for c in pw)
    else:
        part2 = "".join(chr(c + ord("a")) for c in pw)

print(part1, part2)