a = [0, 1, 2, 4, 5]

h1 = lambda x: x % 7
h2 = lambda x: (x+3) % 7

n = 10
m = 0
mm = 10
for n in range(10, 51):
    i = 0
    while (h1(n) + i*h2(n)) % 7 in a:
        i += 1
        if i > 1000:
            break
    if i > m and i < 1000:
        m = i
        mm = n
print(i, n)