//Cache

var pre_op = getOperations() ;

global neighbours_cache = [] ;

for(var j=-17;j<17;j++){
	for(var i=-17;i<17;i++){
		var cell = getCellFromXY(i, j) ;
		var neigbour = 0 ;
		//i-1;j
		if(i>-17){
			var sub_cell = getCellFromXY(i-1, j) ;
			if(sub_cell != null){
				if(!isObstacle(sub_cell)
					or !isLeek(sub_cell)){
					neigbour += 8 ;
				}
			}
		}
		//i;j-1
		if(j>-17){
			var sub_cell = getCellFromXY(i, j-1) ;
			if(sub_cell != null){
				if(!isObstacle(sub_cell)
					or !isLeek(sub_cell)){
					neigbour += 4 ;
				}
			}
		}
		//i+1;j
		if(i<17){
			var sub_cell = getCellFromXY(i+1, j) ;
			if(sub_cell != null){
				if(!isObstacle(sub_cell)
					or !isLeek(sub_cell)){
					neigbour += 2 ;
				}
			}
		}
		//i;j+1
		if(j<17){
			var sub_cell = getCellFromXY(i, j+1) ;
			if(sub_cell != null){
				if(!isObstacle(sub_cell)
					or !isLeek(sub_cell)){
					neigbour += 1 ;
				}
			}
		}
		neighbours_cache[cell] = neigbour ;
	}
}
debug(getOperations()-pre_op-2) ;