import sys
print 'emails'
x= raw_input()
f=0
for a in x:
	if a == ';':
		sys.stdout.write(',\n')
		f=1
	elif a == '(':
		sys.stdout.write(',')
	elif a == ')':
		b=1
	else:
		if f!=0:
			f=0
		else:
			sys.stdout.write(a)