struct GrNode {
	ityp  pos;
	tdata cmp;
	ityp  node_yes;
	ityp  node_not;
	ftyp  value;
};
static ftyp GrNrNode( const GrNode nodes[] , cdata data[] ) {
	ityp nr = 0;
	for( ityp i=0 ; i<3; i++ )
		nr = data[ nodes[nr].pos ] <= nodes[nr].cmp ? nodes[nr].node_yes : nodes[nr].node_not;
	return nodes[nr].value;
}
static ftyp GrClassify( cdata data[] ) {
	const static GrNode nodes[] = {
		{43,1.5,2,0,308.965},
		{49,2.5,3,1,-12.3504},
		{39,1.5,1,2,-267.539},
		{17,2.5,0,2,-31.4059},
		{38,1.5,3,1,132.597},
		{39,1.5,0,3,-259.539},
		{33,0.5,2,0,188.224},
		{24,0.5,3,2,-63.6129},
		{48,3.5,3,2,-35.8216},
		{0,1.5,2,0,-37.1228},
		{18,1.5,1,2,37.0977},
		{8,5.5,3,2,33.516},
		{35,1.5,3,0,73.4675},
		{28,0.5,0,1,13.3011},
		{34,0.5,2,3,-176.771},
		{6,0.5,2,1,87.6714},
		{21,0.5,2,3,-3.88106},
		{37,1.5,3,0,137.985},
		{20,0.5,3,0,-53.9166},
		{22,0.5,1,2,-82.5183},
		{2,0.5,2,1,-42.0246},
		{44,0.5,0,2,51.0838},
		{48,5.5,0,3,-20.0458},
		{8,4.5,2,1,8.65581},
		{41,0.5,3,1,72.9202},
		{51,5.5,3,2,177.466},
		{44,1.5,1,2,118.379},
		{40,0.5,0,2,-371.096},
		{47,1.5,2,1,195.856},
		{40,0.5,2,1,-272.005},
		{30,0.5,3,1,-45.9769},
		{0,2.5,0,3,119.795},
		{36,0.5,2,3,74.487},
		{37,0.5,3,0,60.8671},
		{3,0.5,3,0,96.6547},
		{38,5.5,1,1,-234.34},
		{17,0.5,3,1,50.0098},
		{32,0.5,0,2,79.6661},
		{11,3.5,2,0,-2.77636},
		{16,0.5,0,1,-129.23},
		{28,0.5,3,1,-33.8126},
		{18,0.5,2,3,-78.0193},
		{37,0.5,1,0,-3.59189},
		{12,5.5,3,1,113.093},
		{6,1.5,0,1,92.1463},
		{36,2.5,3,2,-115.909},
		{17,0.5,1,2,8.35723},
		{21,1.5,3,1,13.0751},
		{27,0.5,3,1,122.875},
		{18,5.5,2,0,54.9245},
		{1,0.5,1,0,-47.2955},
		{10,0.5,1,3,-132.834},
		{40,3.5,1,0,13.4755},
		{29,0.5,1,2,67.3139},
		{28,0.5,2,3,-121.054},
		{1,6.5,0,0,37.9334},
		{8,0.5,1,3,-69.1815},
		{10,0.5,1,2,9.89491},
		{50,3.5,3,0,65.7122},
		{41,0.5,2,1,-8.75651},
		{22,0.5,2,1,47.7993},
		{4,0.5,0,2,-135.823},
		{14,0.5,1,3,147.1},
		{4,5.5,3,0,-61.4071},
		{37,0.5,1,2,60.1911},
		{4,0.5,2,3,122.948},
		{46,0.5,0,2,-246},
		{28,0.5,1,3,60.5304},
		{44,6.5,2,0,39.635},
		{14,0.5,2,3,6.77493},
		{0,2.5,1,3,-58.5551},
		{4,2.5,1,2,9.8144},
		{33,0.5,2,0,113.468},
		{1,3.5,3,0,-226.514},
		{34,3.5,3,1,109.21},
		{32,0.5,1,2,1.50476},
		{32,0.5,3,2,-29.6566},
		{10,3.5,0,1,-73.3657},
		{12,0.5,2,1,17.4214},
		{8,0.5,0,2,83.2701},
		{10,4.5,2,1,56.3308},
		{45,0.5,3,0,-66.9728},
		{36,2.5,2,1,18.1439},
		{36,0.5,3,1,-9.83261},
		{0,0.5,0,2,-115.546},
		{32,1.5,1,3,52.9357},
		{1,1.5,1,3,50.4657},
		{51,2.5,2,3,9.81363},
		{45,6.5,3,2,371.239},
		{45,0.5,0,1,-147.88},
		{20,2.5,1,3,-143.747},
		{44,0.5,1,2,-81.9434},
		{25,0.5,3,2,178.699},
		{24,0.5,0,2,-26.3969},
		{24,1.5,1,3,-59.3351},
		{8,4.5,2,3,-95.2983},
	};
	ftyp value=0;
	for( ityp i=0 ; i<24 ; i++ )
		value += GrNrNode( nodes + i*4 , data );
	return value;
}