from itertools import product
x,y = map(int,input().split())
N = 20
ans = 0
for v in product((0,1),repeat=N):
    C = {0:set(),1:set()}
    for f in product((0,1),repeat=4):
        a = v[0]
        for i in range(1,N):
            b = v[i]
            a = f[a*2+b]
        C[a].add(f[2*x+y])
    if len(C[0])==len(C[1]):
        ans = v[:]
        C1 = C
        break
print(N)
print(*ans)
t = int(input())
print(C1[t].pop())