client1	mall1	34
client1	mall2	18
client2	mall1	34
client2	mall2	33
client3	mall1	53
client3	mall2	15
client4	mall1	62
client4	mall2	27
client5	mall1	62
client5	mall2	40
client6	mall1	56
client6	mall2	44
client7	mall1	31
client7	mall2	11
client8	mall1	41
client8	mall2	1
client9	mall1	11
client9	mall2	37
client10	mall1	39
client10	mall2	16
client11	mall1	40
client11	mall2	28
client12	mall1	54
client12	mall2	25
client13	mall1	38
client13	mall2	17
client14	mall1	54
client14	mall2	36
client15	mall1	11
client15	mall2	37
