def validate(str):
    for char in str:
        if REPLACE ME:
            raise ValueError("Crime detected!")

try:
    validate("abcdefg")
    print("✅ test1 pass!")
except:
    print("❌ test1 pass!")

try:
    validate("abcdefg\rhijklmnop")
    print("❌ test2 fail!")
except ValueError as err:
    print("✅ test2 pass!")