java Main < program.input
 start new container 
sum 0
 start new container 
sum 1
 start new container 
sum 2
 end container 
sum 3
 total weight 3 but limit is = 1 OVER CAPACITY 
 end container 
sum 4
sum 5
 total weight 6 but limit is = 5 OVER CAPACITY 
 end container 
SUCCESS
done