for x in '0123456789abcdefghijkl':
    x1 = '1' + str(x) + '1'+ str(x) + '1'+ str(x) + '1'+ str(x) + '1'
    x2 = '20' + str(x) + '24'
    x3 = '1' + str(x) + '235'
    res = int(x1, 23) + int(x2, 23) + int(x3, 23)
    if res % 22 == 0:
        res = res // 22
        print(res)
        break