derek
20
-2
20
-2
30
-2
30
-2
30
-2
30
-2
30
-2
30
0
20
0
20
0
40
0
100
2
0
0
100
0
alex
20
-2
20
1
30
1
30
1
30
1
30
1
30
0
30
0
20
0
20
0
40
0
100
0
100
0
100
1
1