27+		5-	3-	7+	10+
					13+
4-		25+				10+
		6+
12+	15+		17+
					18+
6+				6

Difficulty: Impossible ()

1-		63*	210*		16*
6/
10+	84*	9+			70560*
		10+				90*
8*
	15*		12+		168*

Difficulty: Impossible ()

15*	8+	6+		7*	15+	168*
		15+
7/			13+	48*
	21*					16+
48*		10+		10+
						2*
	17+			8+

Difficulty: Difficult ()

30*	84*	20*			630*
			12*
	12*	168*			7*	10*
		12*		15*
42*	14*		10*			24*
				63*	8*
120*

Difficulty: Medium ()