#
#  calculate memory of server and echo as gb
#  workaround, because cli missing commands for this operation
#
#  @author Björn Hase, me@tentakelfabrik.de
#  
#

import sys
import math

result = float(sys.argv[1]) / 1000 / 1000
result = math.ceil(result)
result = int(result)

print (result)