# Naming conventions problem

# Function to return the case for an identifier
def IName(Part1, Part2, Convention):
    if Convention == "kebab-case":
        # First part of the identifier in lowercase
        First = Part1.lower()
        # With a dash
        Second = "-"
        # Second part of the identifier in lowercase
        Third = Part2.lower()
        return First + Second + Third

    elif Convention == "snake_case":
        # First part of the identifier in lowercase
        First = Part1.lower()
        # With an underscore
        Second = "_"
        # Second part of the identifier in lowercase
        Third = Part2.lower()
        return First + Second + Third
    
    elif Convention == "camelCase":
        # First part of the identifier in lowercase
        First = Part1.lower()
        # First character of second part in uppercase
        Second = Part2[0].upper()
        # Rest of the second part in lowercase
        ThirdStop = len(Part2)-1
        Third = Part2[-ThirdStop:].lower()
        return First + Second + Third

    elif Convention == "PascalCase":
        # First character of the identifier in uppercase
        First = Part1[0].upper()
        # Rest of the first part in lowercase
        SecondStop = len(Part1)-1
        Second = Part1[-SecondStop:].lower()
        # First letter of second part in uppercase
        Third = Part2[0].upper()
        # Rest of the second part in lowercase
        FourthStop = len(Part2)-1
        Fourth = Part2[-FourthStop:].lower()
        return First + Second + Third + Fourth

# Main program
print("kebab-case:", IName("Shields", "Up", "kebab-case"))
print("snake_case:", IName("Shields", "Up", "snake_case"))
print("camelCase:", IName("Shields", "Up", "camelCase"))
print("PascalCase:", IName("Shields", "Up", "PascalCase"))