WORKER METHOD TIME I1 I2 J1 J2 J3 J4 
1        1    2.28  1  0  1  0  0  0
1        2    2.50  0  1  1  0  0  0
1        3    2.61 -1 -1  1  0  0  0
2        1    3.77  1  0  0  1  0  0
2        2    4.02  0  1  0  1  0  0
2        3    3.95 -1 -1  0  1  0  0
3        1    2.62  1  0  0  0  1  0
3        2    3.05  0  1  0  0  1  0
3        3    3.12 -1 -1  0  0  1  0
4        1    3.14  1  0  0  0  0  1
4        2    3.45  0  1  0  0  0  1
4        3    3.62 -1 -1  0  0  0  1
5        1    2.41  1  0 -1 -1 -1 -1
5        2    2.90  0  1 -1 -1 -1 -1
5        3    2.74 -1 -1 -1 -1 -1 -1