#!/usr/env python3

import re

def main():
    path1 = input("Percorso file input: ")
    path1 = re.sub("\"", "", path1)
    path1 = re.sub("'", "", path1)
    file_input = open(path1, "r")
    path2 = re.sub(".txt", ".csv", path1)
    file_output = open(path2, "w")
    for line in file_input.readlines():
        if (line != "\n"):
            line2 = line.replace("\n", "")
            line2 = re.sub("[A-Za-z]", "", line2)
            data = line2.split(",")
            if (len(data) > 3):
                x = float(data[0] + "." + data[1])
                y = float(data[2] + "." + data[3])
                file_output.write("%f,%f\n"%(x, y))
    file_input.close()
    file_output.close()

if __name__ == "__main__":
    main()