Py2865-紧急措施-步骤清晰

my_email = input().strip()
n = int(input())
arr = list(input().split() for i in range(n))
found = False
for username, password, email in arr:
    if email == my_email:
        found = True
        new_password = ""
        for char in password:
            if char.islower():
                new_password += char.upper()
            elif char.isupper():
                new_password += char.lower()
            else:
                new_password += char
        print(f"{username} {new_password}")
if not found:
    print("empty")