text: Time	Flow A	Flow B	Flow C	Flow D	Stock A	Stock B	Stock C	Stock D
  0	1	1	1	1	3	15	5	7
  1	1	1	1	1	4	16	6	8
  2	1	1	1	1	5	17	7	9
  3	1	1	1	1	6	18	8	10
  4	1	1	1	1	7	19	9	11
  5	1	1	1	1	8	20	10	12
  6	1	1	1	1	9	21	11	13
  7	1	1	1	1	10	22	12	14
  8	1	1	1	1	11	23	13	15
  9	1	1	1	1	12	24	14	16
  10	1	1	1	1	13	25	15	17