;0,0,4,0,0,13,0,0;:
;-1,0,12,13,0,11,12,0;:
;0,1,0,1,5,0,5,0;:
;-1,13,0,0,0,0,0,4;:
;0,4,0,0,0,0,13,0;:
;-1,0,4,0,0,0,13,0;:
;0,0,5,5,5,5,0,0;:
;-1,0,0,0,0,0,0,0;: