client1	mall1	24
client1	mall2	34
client2	mall1	10
client2	mall2	22
client3	mall1	17
client3	mall2	31
client4	mall1	28
client4	mall2	18
client5	mall1	21
client5	mall2	36
client6	mall1	35
client6	mall2	41
client7	mall1	15
client7	mall2	30
client8	mall1	16
client8	mall2	32
client9	mall1	16
client9	mall2	8
client10	mall1	17
client10	mall2	27
client11	mall1	32
client11	mall2	47
client12	mall1	19
client12	mall2	29
client13	mall1	5
client13	mall2	22
client14	mall1	36
client14	mall2	22
client15	mall1	30
client15	mall2	20
