Enter: <report interval><endingtime><seed1><seed2><num express>([1,19])
Sample input: 100 1200 1 1 10

          ******* Supermarket Simulation *********

Mean interarrival time = 8 secs

Random seeds are: 1 1

Total number of cashiers = 20 (10 are express)

(Times are reported in minutes)
CstArrv: total number of customers that arrived so far
CstServ: total number of customers that were served so far
CS/min:  average number of customers served per minute
Its/min: average number of items sold per minute
MaxWait: maximum waiting time among all customers served so far
AvgWait: average waiting time among customers
AvgServ: average service time among customers
AvgTime: average time among customers (waiting+service)

(Times are reported in minutes)
    Time CstArrv CstServ  CS/min Its/min MaxWait AvgWait AvgServ AvgTime
-------------------------------------------------------------------------------
     100     699     499    4.99  142.58  36.682  10.288  2.5058  12.794
     200    1456    1019   5.095  147.26  84.116  21.554  2.4852  24.039
     300    2303    1571  5.2367  149.74  127.04  33.337  2.4542  35.791
     400    3060    2091  5.2275  150.13  173.47  45.988  2.4546  48.443
     500    3816    2630    5.26  150.37  222.74  59.373  2.4426  61.816
     600    4563    3162    5.27  150.54  274.46  72.908    2.44  75.348
     700    5335    3697  5.2814  150.43  316.07  86.197   2.434  88.631
     800    6071    4214  5.2675  150.11  355.16  99.708  2.4339  102.14
     900    6769    4736  5.2622  150.01   393.8  112.75  2.4337  115.18
    1000    7522    5270    5.27  150.34  440.19  125.09  2.4322  127.53
    1100    8291    5830     5.3  150.25  478.95  137.59  2.4239  140.01
    1200    9012    6354   5.295  150.25  521.81  149.68  2.4243  152.11
