import sys


def split_and_flat(input_string):
    if "\n" in input_string:
        _without_newlines = input_string.split("\n")
        _without_empty = filter(lambda x: x != "", _without_newlines)
        input_string = ",".join(_without_empty)
    # Split the input string on commas
    comma_split = input_string.split(",")

    # Initialize an empty flat list
    flat_list = []

    # Iterate through the comma-separated values
    for item in comma_split:
        # Split each item on dashes
        dash_split = item.split("-")

        # Extend the flat list with the dash-separated values
        flat_list.extend([value.strip().replace("\n", "") for value in dash_split])

    map(lambda x: x.strip(), flat_list)
    return ",".join(flat_list)


if __name__ == "__main__":
    # Check if a single command-line argument is provided
    if len(sys.argv) != 2:
        print("Usage: python split_and_flat.py <input_string>")
        sys.exit(1)

    # Get the input string from the command-line argument
    input_string = sys.argv[1]

    # Call the split_and_flat function and print the result
    result = split_and_flat(input_string)
    print(result)