n = 0
s = ''
s2 = ','
while n < 12:
    n += 1
    if n ==6 or n==10:
        s += ' '
    if n==6 or n== 10:
        continue
    elif n==12:
        s = s + str(n)
    else:
        s = s + str(n) +s2
print(s)