def snake_case_to_pascal_case(input_string):
    """
    Converts the input string from snake_case to PascalCase
    :param input_string: (str) a snake_case string
    :return: (str) a PascalCase string
    """
    input_list = input_string.split('_')
    input_list = [i.capitalize() for i in input_list]
    output = ''.join(input_list)
    return output