import math
inputer = int(input())
result =""

sev_base = 12
while sev_base >=0:
	if int(math.pow(7,sev_base))<=inputer or inputer ==0:
		result =result+str(int(inputer/math.pow(7,sev_base)))
		inputer=inputer%math.pow(7,sev_base)
	sev_base=sev_base-1

print(result)