import email.utils name="" user="" domain="" ext="" a=[] out="" new_str=""

n=int(input())

def validity(n,u,d,e):

if u[0].isalpha() and "@" not in u:

    out=n+"<"+u+"@"
    if d.isalpha():
        out+=d
        if len(e)<=4 and len(e)>0:
            if e.isalpha():

                out+="."+e+">"        
                print(out)

for i in range(n): a.append(input())

for email in a: if "<" in email: name,mail=email.split("<",1) if "@" in mail: user, domain_with_ext = mail.split("@", 1)

        if "." in domain_with_ext:
            domain, exten = domain_with_ext.split(".", 1)

            if ">" in exten:
                ext,new_str=exten.split(">",1)
                validity(name,user,domain,ext)