N = int(input())
ans = ""
c9, c6, c3 = 10**9, 10**6, 10**3
if N >= c9:
    ans = str(N // c9) + "," + "{:03d}".format((N % c9) // c6) + "," + "{:03d}".format((N%c6) // c3) + "," + "{:03d}".format(N % c3)
elif N >= c6:
    ans = str((N % c9) // c6) + "," + "{:03d}".format((N%c6) // c3) + "," + "{:03d}".format(N % c3)
elif N >= c3:
    ans = str((N%c6) // c3) + "," + "{:03d}".format(N % c3)
else:
    ans = str(N)

print(ans)