from sys import *
a = 1
array = ""
try:
while True:
try:
hoge = raw_input()
ans = hoge.index('@')
array +=str(a)+"-"+str(ans)+", "
a+=1
except ValueError: break
except EOFError: print array
ZnJvbSBzeXMgaW1wb3J0ICoKYSA9IDEKYXJyYXkgPSAiIgp0cnk6CiAgd2hpbGUgVHJ1ZToKICAgIHRyeToKICAgICAgaG9nZSA9IHJhd19pbnB1dCgpCiAgICAgIGFucyA9IGhvZ2UuaW5kZXgoJ0AnKSAKICAgICAgYXJyYXkgKz1zdHIoYSkrIi0iK3N0cihhbnMpKyIsICIKICAgICAgYSs9MQogICAgZXhjZXB0IFZhbHVlRXJyb3I6IGJyZWFrCmV4Y2VwdCBFT0ZFcnJvcjogcHJpbnQgYXJyYXk=