activation_key

activation_key = input()

while True:
    command = input().split(">>>")
    if command[0] == "Generate":
        break
    elif command[0] == "Contains":
        substring = command[1]
        if substring in activation_key:
            print(f"{activation_key} contains {substring}")
        else:
            print("Substring not found!")
    elif command[0] == "Flip":
        flip_type = command[1]
        start_idx, end_idx = int(command[2]), int(command[3])
        if flip_type == "Upper":
            changed_part = activation_key[start_idx:end_idx].upper()
            activation_key = activation_key[:start_idx] + changed_part + activation_key[end_idx:]
        elif flip_type == "Lower":
            changed_part = activation_key[start_idx:end_idx].lower()
            activation_key = activation_key[:start_idx] + changed_part + activation_key[end_idx:]
        print(activation_key)
    elif command[0] == "Slice":
        start_idx, end_idx = int(command[1]), int(command[2])
        activation_key = activation_key[:start_idx] + activation_key[end_idx:]
        print(activation_key)
print(f"Your activation key is: {activation_key}")