EV	RV
A	3
A	4
A	4
A	5
A	5
A	5
A	6
A	6
A	7
B	4
B	5
B	5
B	6
B	6
B	6
B	7
B	7
B	8
C	5
C	6
C	6
C	7
C	7
C	7
C	8
C	8
C	9