client1	mall1	47
client1	mall2	52
client2	mall1	21
client2	mall2	19
client3	mall1	21
client3	mall2	8
client4	mall1	12
client4	mall2	25
client5	mall1	22
client5	mall2	21
client6	mall1	36
client6	mall2	41
client7	mall1	35
client7	mall2	20
client8	mall1	9
client8	mall2	24
client9	mall1	58
client9	mall2	58
client10	mall1	25
client10	mall2	14
client11	mall1	21
client11	mall2	33
client12	mall1	22
client12	mall2	21
client13	mall1	22
client13	mall2	19
client14	mall1	6
client14	mall2	21
client15	mall1	37
client15	mall2	22
