Slot quiz bruteforce script

count = 0
all_ans = []
for a in range(30):
    for b in range(30):
        for c in range(30):
            for d in range(30):
                test1 = a + b + a
                test2 = a + c + c
                test3 = c + d + d
                if (test1 == 30 and test2 == 16 and test3 == 21):
                    count += 1
                    ans = a + c + d
                    all_ans.append(ans)
                    print("-------- [RESULT {}] --------".format(count))
                    print("TEST 1: a({0})\t+\tb({1})\t+\ta({0})\t=\t{2}".format(a, b, test1))
                    print("TEST 2: a({0})\t+\tc({1})\t+\tc({1})\t=\t{2}".format(a, c, test2))
                    print("TEST 3: c({0})\t+\td({1})\t+\td({1})\t=\t{2}".format(c, d, test3))
                    print("ANSWER: a({})\t+\tc({})\t+\td({})\t=\t{}".format(a, c, d, ans))
print("-------- [ANSWER] --------")
print("POSSIBLE ANSWER: {}".format(repr(list(set(all_ans)))))