client1	mall1	23
client1	mall2	5
client2	mall1	16
client2	mall2	25
client3	mall1	14
client3	mall2	23
client4	mall1	5
client4	mall2	29
client5	mall1	31
client5	mall2	21
client6	mall1	17
client6	mall2	26
client7	mall1	22
client7	mall2	35
client8	mall1	38
client8	mall2	35
client9	mall1	50
client9	mall2	24
client10	mall1	53
client10	mall2	51
client11	mall1	1
client11	mall2	25
client12	mall1	33
client12	mall2	10
client13	mall1	20
client13	mall2	12
client14	mall1	31
client14	mall2	18
client15	mall1	26
client15	mall2	5
