client1	mall1	23
client1	mall2	16
client2	mall1	26
client2	mall2	11
client3	mall1	31
client3	mall2	41
client4	mall1	18
client4	mall2	35
client5	mall1	26
client5	mall2	35
client6	mall1	21
client6	mall2	33
client7	mall1	22
client7	mall2	15
client8	mall1	17
client8	mall2	11
client9	mall1	26
client9	mall2	23
client10	mall1	25
client10	mall2	27
client11	mall1	8
client11	mall2	29
client12	mall1	14
client12	mall2	28
client13	mall1	30
client13	mall2	38
client14	mall1	17
client14	mall2	40
client15	mall1	10
client15	mall2	25
