#!/usr/bin/python

import sys, os
from popen2 import popen2

def combine(list):
    for i in xrange(len(list) - 1):
        for o in xrange(i + 1, len(list)):
            yield list[i], list[o]

if len(sys.argv) < 2:
    sys.stderr.write("usage: icom-dir DIRECTORY\n")
    sys.exit(1)

files = os.listdir(sys.argv[1])
files.sort()
pj = os.path.join

for file1, file2 in combine(files):
    co, ci = popen2(["icom", pj(sys.argv[1], file1), pj(sys.argv[1], file2)])
    ci.close()
    index = int(co.readline().split()[0])
    co.close()
    sys.stdout.write("%i %s %s\n" % (index, file1, file2))