题解 | #尼科彻斯定理#

while True:
    try:
        n = int(input())
        l = [i for i in range(1, n**3+1) if i%2 != 0]
        for i in range(len(l)):
            if sum(l[i:n+i]) == n**3 and len(l[i:n+i])==n:
                print('+'.join(map(str,l[i:n+i])))
    except:
        break