maxi = []

for x in "0123456789ABCDEFGHI":

x1 = '98' + str(x) + '79641'

x2 = '36' + str(x) + '14'

x3 = '73' + str(x) + '4'

res = int(x1, 19) + int(x2, 19) + int(x3, 19)

if res % 18 == 0:

res = res // 18

maxi.append(res)

print(max(maxi))

maxi = []

for num in range(19):

a = list(reversed([9, 8, num, 7, 9, 6, 4, 1]))

b = list(reversed([3, 6, num, 1, 4]))

c = list(reversed([7, 3, num, 4]))

for i in range(8):

a[i] = a[i] * 19 ** i

for i in range(5):

b[i] = b[i] * 19 ** i

for i in range(4):

c[i] = c[i] * 19 ** i

if (sum(a) + sum(b)+ sum(c)) % 18 == 0:

maxi.append((sum(a) + sum(b)+ sum(c)) // 18)

print(max(maxi))

for x in "0123456789abcdefghi":

if (int('98' + x + '79641', 19) + int('36' + x + '14', 19) + int('73' + x + '4', 19))%18==0:

print(x, (int('98' + x + '79641', 19) + int('36' + x + '14', 19) + int('73' + x + '4', 19))//18)