def Confirm(msg):
    while 1:
        try:
            answer = raw_input(msg)
        except ValueError:
            print "ValueError exception encountered! Try again."
            continue
        except:
            print "Error occured! Try again."
            continue
        if answer != "Yes" and answer != "yes" and answer != "YES" and answer != "Y" and answer != "y" and answer != "No" and answer != "NO" and answer != "no" and answer != "n" and answer != "N":
            print "Invalid answer! Try again."
            continue
        break
    if answer == "Yes" or answer == "yes" or answer == "YES" or answer == "Y" or answer == "y":
        answer = 1
    else:
        answer = 0
    return answer

def GetString(msg):
    while 1:
        try:
            return raw_input(msg)
        except ValueError:
            print "ValueError exception encountered! Try again."
            continue
        except:
            print "Error occured! Try again."
            continue
        break
    print "Loop error occured!"
    return None

def ScanAndWrite(file_in, file_out):
    print "File to read from (input file):", file_in
    print "File to write to (output file):", file_out
    if Confirm("Ok? (Y/N)\n") == 0:
        return
    print ""
    fin = open(file_in, "r")
    fout = open(file_out, "w")
    startFlag, writeFlag, endFlag = 0, 0, 0
    temp = ""
    for line in fin:
        iter, startFlag = 0, 0
        if writeFlag == 0:
            for i in line:
                if startFlag == 1:
                    if i == '/':
                        print line[iter-1:]
                        fout.write(line[iter-1:] + '\n')
                    else:
                        startFlag = 0
                if i == '/':
                    startFlag = 1
                iter += 1
        startFlag = 0
        for i in line:
            if startFlag == 1:
                if i == '*':
                    if writeFlag == 0:
                        temp += "/"
                    writeFlag += 1
                else:
                    startFlag = 0
            if writeFlag > 0:
                temp += i
                if endFlag == 1:
                    if i == '/':
                        if writeFlag > 0:
                            writeFlag -= 1
                    else:
                        endFlag = 0
                if i == '*':
                    endFlag = 1
                if writeFlag == 0:
                    print temp + '\n'
                    fout.write(temp + "\n\n")
                    temp = ""
            if i == '/':
                startFlag = 1

def Wait(msg):
    while 1:
        try:
            raw_input(msg)
        except:
            return
        return

def main():
    file_in = GetString("Input file: ")
    if file_in == None:
        Wait("Filename error (file_in). Exiting...")
    while 1:
        file_out = GetString("Output file: ")
        if file_out == None:
            Wait("Filename error (file_out). Exiting...")
        elif file_out == file_in:
            print "Warning: Output file cannot be the same as input file! Try again."
            continue
        break
    print ""
    ScanAndWrite(file_in, file_out)
    Wait("Exiting...")
    return

main()