S
+2A
B
C
+2
+1
+1
+3
+2
+5
+8
+5
+7
+5
+4
+4
+13
+4
+1
+6
+30
+6
+8
+21
+6
+4
+14
+15
+10
+25
+12
+5
+16
+3
+13
+5
+21
+22
+9