#!/usr/bin/python
import os,sys,string

f = open("words.txt");

list=f.readlines();
num = sys.argv[1]
	
g=[]
for i in list:
	g.append(string.strip(i))
theBase = len(g)
if sys.argv[0] == "./wordnum":
	theNum = string.atoi(num);
	h = []
	while theNum > len(g)-1:
		inum = ((theNum) % len(g))
		h.insert(0, inum)
		theNum = theNum / len(g)
	h.insert(0, theNum);
	
	str = ""
	for i in h:
		str = str+g[i]
	
	print str
else:
	index0 = 0
	h = []
	while index0 < len(num):
		index1 = index0+1
		while index1 < (len(num)+1):
			try: 
				ind = g.index(num[index0:index1])
				index0=index1
				h.insert(0, ind)
			except ValueError:
				index1 = index1+1
	theNum = 0
	for i in range(0,len(h)):
		theNum = theNum + h[i] * pow(theBase, i)
	print(theNum)