#!/usr/bin/env python3

import sys
import csv
import random

random.seed(1234)

vids = {}
for line in csv.DictReader(open(sys.argv[1])):
    fn = line['wav_filename'].split('/')[-1]
    vid = "_".join(fn.split("_")[:-1])
    if vid not in vids:
         vids[vid] = "v_" + fn


keys = list(vids.keys())
size = len(keys)
for i in range(3000):
    j = random.randint(0, size)
    k = random.randint(0, size)
    while k == j:
        k = random.randint(0, size)
    print (vids[keys[j]], vids[keys[k]])