from itertools import product

alphabet = '0123456'

ap=[]

for i in product(alphabet, repeat=4):

if i[0] > i[1] > i[2] > i[3]:

ap.append(i)

print(len(ap))

k = 0

for i1 in range(7):

for i2 in range(7):

for i3 in range(7):

for i4 in range(7):

if i1 > i2 and i2 > i3 and i3 > i4:

k += 1

print(k)

def f7(x):

s = ''

while x:

s = str(x%7) + s

x = x//7

return s

k = 0

for i in range(int('6666',7)+1):

s = f7(i)

if len(s) == 4 and s[0] > s[1] > s[2] > s[3] :

k+=1

print(k)