import random


class Operations:
    def AND(self, x, y):
        return True if (x and y) else False

    def OR(self, x, y):
        return True if (x or y) else False

    def NOT(self, a):
        return True if not (a) else False

    def NAND(self, x, y):
        return True if not (x and y) else False

    def NOR(self, x, y):
        return True if (not x and not y) else False

    def XOR(self, x, y):
        return True if (x ^ y) else False


def output(inp):
    arr = ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J"]
    out = []

    for i in range(len(inp)):
        if int(inp[i]) == 1:
            out.append(arr[i])

    return "".join(out)


def crack(A, B, C, D, E, F, G, H, I, J):
    a, b, b_1, b_2, c_1, c_2, d, d_1, d_2 = 0, 0, 0, 0, 0, 0, 0, 0, 0

    op = Operations()

    # ----------------- A..F ----------------
    # A, B
    if op.NOR(A, op.NOT(B)):
        a = 1

    # C, D, E, F
    if op.OR(op.NOT(C), D):
        b_1 = 1
    if op.NOR(E, op.NOT(F)):
        b_2 = 1

    if op.NOR(b_1, b_2):
        b = 1

    # AB, CDEF
    if op.AND(a, b):
        a = 1
    else:
        a = 0
    # ---------------------------------------

    # ----------------- G..J ----------------
    if op.NOR(G, H):
        c_1 = 1
    if op.XOR(H, I):
        c_2 = 1

    if op.AND(c_1, c_2):
        d_1 = 1
    if op.AND(I, J):
        d_2 = 1

    if op.AND(d_1, d_2):
        d = 1
    # ---------------------------------------

    # ----------------- FINAL ---------------
    if op.AND(a, d):
        print(
            f"{A}{B}{C}{D}{E}{F}{G}{H}{I}{J}\n" +
            "CTF{" + f"{output([A, B, C, D, E, F, G, H, I, J])}" + "}")
        return True
    return False


def rnd():
    return random.randint(0, 1)


while 1:
    if crack(rnd(), rnd(), rnd(), rnd(), rnd(), rnd(), rnd(), rnd(), rnd(), rnd()):
        break