def main():
screen = Screen()
input_path, output_path = argparse()
try:
input_file = open(input_path, "r")
output_file = open(output_path, "w+")
except FileNotFoundError:
raise SystemExit(USAGE)
for item in input_file.read().split("\n"):
output_file.write(screen.change_state(item) + "\n")
input_file.close()
output_file.close()
