client1	mall1	14
client1	mall2	26
client2	mall1	29
client2	mall2	33
client3	mall1	12
client3	mall2	22
client4	mall1	18
client4	mall2	30
client5	mall1	11
client5	mall2	1
client6	mall1	10
client6	mall2	22
client7	mall1	21
client7	mall2	33
client8	mall1	25
client8	mall2	33
client9	mall1	27
client9	mall2	15
client10	mall1	25
client10	mall2	35
client11	mall1	18
client11	mall2	7
client12	mall1	20
client12	mall2	29
client13	mall1	50
client13	mall2	44
client14	mall1	24
client14	mall2	22
client15	mall1	35
client15	mall2	39
