Queue status:
 - PriorityNode [element=a, priority=2.0, next=null]

size of queue: 1
front of the queue: PriorityNode [element=a, priority=2.0, next=null]
end of the queue: PriorityNode [element=a, priority=2.0, next=null]

Queue status:
 - PriorityNode [element=b, priority=7.0, next=a]
 - PriorityNode [element=a, priority=2.0, next=null]

size of queue: 2
front of the queue: PriorityNode [element=b, priority=7.0, next=a]
end of the queue: PriorityNode [element=a, priority=2.0, next=null]

Queue status:
 - PriorityNode [element=b, priority=7.0, next=c]
 - PriorityNode [element=c, priority=5.0, next=a]
 - PriorityNode [element=a, priority=2.0, next=null]

size of queue: 3
front of the queue: PriorityNode [element=b, priority=7.0, next=c]
end of the queue: PriorityNode [element=a, priority=2.0, next=null]

Queue status:
 - PriorityNode [element=b, priority=7.0, next=d]
 - PriorityNode [element=d, priority=6.0, next=c]
 - PriorityNode [element=c, priority=5.0, next=a]
 - PriorityNode [element=a, priority=2.0, next=null]

size of queue: 4
front of the queue: PriorityNode [element=b, priority=7.0, next=d]
end of the queue: PriorityNode [element=a, priority=2.0, next=null]

Queue status:
 - PriorityNode [element=b, priority=7.0, next=d]
 - PriorityNode [element=d, priority=6.0, next=c]
 - PriorityNode [element=c, priority=5.0, next=e]
 - PriorityNode [element=e, priority=5.0, next=a]
 - PriorityNode [element=a, priority=2.0, next=null]

size of queue: 5
front of the queue: PriorityNode [element=b, priority=7.0, next=d]
end of the queue: PriorityNode [element=a, priority=2.0, next=null]

Queue status:
 - PriorityNode [element=d, priority=6.0, next=c]
 - PriorityNode [element=c, priority=5.0, next=e]
 - PriorityNode [element=e, priority=5.0, next=a]
 - PriorityNode [element=a, priority=2.0, next=null]

size of queue: 4
front of the queue: PriorityNode [element=d, priority=6.0, next=c]
end of the queue: PriorityNode [element=a, priority=2.0, next=null]

Queue status:
 - PriorityNode [element=c, priority=5.0, next=e]
 - PriorityNode [element=e, priority=5.0, next=a]
 - PriorityNode [element=a, priority=2.0, next=null]

size of queue: 3
front of the queue: PriorityNode [element=c, priority=5.0, next=e]
end of the queue: PriorityNode [element=a, priority=2.0, next=null]

Queue status:
 - PriorityNode [element=e, priority=5.0, next=a]
 - PriorityNode [element=a, priority=2.0, next=null]

size of queue: 2
front of the queue: PriorityNode [element=e, priority=5.0, next=a]
end of the queue: PriorityNode [element=a, priority=2.0, next=null]

Queue status:
 - PriorityNode [element=a, priority=2.0, next=null]

size of queue: 1
front of the queue: PriorityNode [element=a, priority=2.0, next=null]
end of the queue: PriorityNode [element=a, priority=2.0, next=null]

Queue status:
 - Empty

size of queue: 0
front of the queue: null
end of the queue: null