#!/usr/bin/env python
import sys
sep = '\t'
pc = 5
try:
	pc = int(sys.argv[1])
except:
	pass
try:
	sep = sys.argv[2]
except:
	pass
#
for line in sys.stdin.readlines():
	try:
		line = line.rstrip().split(sep)
		for i in range(len(line)):
			try:
				line[i] = int(line[i])
			except:
				try:
					line[i] = float(line[i])
				except:
					pass
		sys.stdout.write(sep.join([('{0:.'+str(pc)+'E}').format(x) if isinstance(x, float) else str(x) for x in line]).replace('\n','')+'\n')
	except IOError:
		sys.exit(0)