-------------------0---------------------| 2 times
-----1------3------------1---------------|
-----------------------------------------|
-----------------------------------------|
-----------------------------------------|
-----------------------------------------|
------0-------1------3-------------------|
-----------------------------------------| 2 times
-----------------------------------------|
-----------------------------------------|
-----------------------------------------|
-----------------------------------------|
-----3------5-----3-----1-----0----------| 2 times
------------------------------------1----|
-----------------------------------------|
-----------------------------------------|
-----------------------------------------|
-----------------------------------------|
-----------------------------------------| 2 times
-----3------0-------1--------------------|
-----------------------------------------|
-----------------------------------------|
-----------------------------------------|
-----------------------------------------|
|