n,m = map(int,input().split())
lst = [m]

def opposite():
    lst.insert(0,-1)

for i in range(2,n+1):
    p = (i+2)//2
    get_p = 1
    use_m = 0
    tmp = []
    for j in range(i-1):
        apd = 0
        if lst[j]==0:
            get_p+=1
            use_m+=1
            apd = 1
        elif lst[j]==-1:
            get_p+=1
        tmp.append(apd)
    if get_p>p:
        get_p -= p
        p = get_p
        use_m -= p
        for j in range(p):
            for k in range(i-1):
                if tmp[k]==1:
                    tmp[k]=0
                    break
    if get_p==p:
        if use_m<=m:
            lst = [m-use_m]+tmp[:]
        else:
            opposite()
        continue
    
    p -= get_p
    if m < use_m+p*2 or i==2:
        opposite()
    else:
        for j in range(p):
            for l in range(i-2,-1,-1):
                if lst[l]==1:
                    lst[l],tmp[l] = 2,2
                    use_m += 2
                    break
        lst = [m-use_m]+tmp[:]
print(*lst)