import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

K = int(read())

B = []
for N in range(1,31):
    for one in range(N+1):
        zero = N - one
        x = one * (one-1) // 2 * (2 ** zero)
        if K == x:
            B = [0] * zero + [1] * one

print(len(B))
print(*B)