;0,0,3,3,13,13,0,0;:
;-1,0,13,13,2,3,3,0;:
;0,3,1,2,2,1,13,0;:
;-1,0,3,13,2,13,3,0;:
;0,5,13,3,3,13,4,0;:
;-1,5,0,4,0,5,0,4;:
;0,4,0,4,0,4,0,5;:
;-1,4,0,0,5,4,0,4;:
;0,5,0,5,0,5,0,0;:
;-1,4,0,4,0,0,5,0;:
;0,4,0,4,0,4,0,0;:
;-1,5,0,0,5,0,5,0;: