6-1.py

a = open('6.txt').read()
a = a.split('\t')
a = map(int, a)

c = []
n = 0

def get_max(a):
    m = (0, 0)
    for i in range(len(a)):
        if a[i] > m[1]:
            m = (i, a[i])
    return m

while True:
    if ''.join(map(str, a)) in c:
        print n
        break
    c += [''.join(map(str, a))]
    x = get_max(a)
    a[x[0]] = 0
    for i in range(1, x[1]+1):
        a[(x[0]+i)%len(a)] += 1
    n += 1