client1	mall1	6
client1	mall2	29
client2	mall1	34
client2	mall2	17
client3	mall1	12
client3	mall2	41
client4	mall1	31
client4	mall2	33
client5	mall1	19
client5	mall2	30
client6	mall1	28
client6	mall2	30
client7	mall1	41
client7	mall2	8
client8	mall1	30
client8	mall2	51
client9	mall1	39
client9	mall2	54
client10	mall1	24
client10	mall2	46
client11	mall1	24
client11	mall2	43
client12	mall1	34
client12	mall2	48
client13	mall1	30
client13	mall2	33
client14	mall1	47
client14	mall2	33
client15	mall1	11
client15	mall2	38
