import sys
f1 = open(sys.argv[1], 'r')
f2 = open(sys.argv[2], 'r')
f3 = open(sys.argv[2]+"_26756", 'w')
uni_id_dic = {}
for line in f1:
        uni_id_dic[line.strip()] = True
for line in f2:
        if line.strip().split("\t")[3] in uni_id_dic:
                print >> f3, line,