[..........fig.1.........] [fig.1]
----------0--1-0--------------------------------------------------------
---1--0-3--------3-0-----0--1----------0-----0---------0----------------
-2-------------------0-2-------2-2-1-2---1---------------2-1----1-2-2---
---------------------------------3-----2---2-----------------4----------
---0----2-3----------2------0-------------------------------------0-0---
-----------------3-------------------------0---------------0------------
[........fig.2.....] [fig.2]
-3-3--2-0---------------------------------------------------------------
----------3-0-----0-1------------------0---------------0----------------
--------------0-2--------------2-2-1-2---1---------------2-1----1-2-2---
-2-2-----------------------------3-----2---2-----------------4----------
-3-3----------2-----0---------------------------------------------0-0---
----------3--------------------------------0---------------0------------
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