9.2.3. Bulls and cows

secret_number = input()
top_secret_number = secret_number
numb_of_bulls = int(input())
numb_of_cows = int(input())
current_number = ''
current_bulls = 0
current_cows = 0
flag_found = False
for digit_1 in range(1, 10):
    for digit_2 in range(1, 10):
        for digit_3 in range(1, 10):
            for digit_4 in range(1, 10):
                current_number = str(digit_1) + str(digit_2) + str(digit_3) + str(digit_4)
                for i in range(0, 4):
                    for j in range(0, 4):
                        if current_number[j] == top_secret_number[j]:
                            current_bulls += 1
                            symb = list(top_secret_number)
                            symb[j] = '0'
                            top_secret_number = "".join(symb)
                            symb_cur = list(current_number)
                            symb_cur[j] = 'z'
                            current_number = "".join(symb_cur)
                    for l in range(0, 4):
                        if current_number[l] == top_secret_number[i]:
                            current_cows += 1
                            symb = list(top_secret_number)
                            symb[i] = '0'
                            top_secret_number = "".join(symb)
                            symb_cur = list(current_number)
                            symb_cur[l] = 'z'
                            current_number = "".join(symb_cur)
                 if current_bulls == numb_of_bulls and current_cows == numb_of_cows:
                    flag_found = True
                    print((str(digit_1) + str(digit_2) + str(digit_3) + str(digit_4)), end=' ')
                current_cows = 0
                current_bulls = 0
                top_secret_number = secret_number
if not flag_found:
    print('No')