ege_35479

def f(x, y, h):
    if x + y >= 77:
        if h % 2 == 0:
            return 1
        else:
            return 0
    if x + y >= 77 and h > 10:
        return 0



    A = f(x, y + 1, h + 1)
    B= f(x, y * 2, h + 1)
    C = f(x + 1, y, h + 1)
    D = f(x * 2, y, h + 1)
    if h % 2 == 1:
        return A or B or C or D
    else:
        return A and B and C and D


for S in range(68, 0, -1):
    print(S)
    if f(8, S, 0):
        print(S)
        break