a
0
1
a
0
1
a
0
1
a
0
1
a
0
2
a
0
6
b1a4
0
1
b1a4
1
1
INS:4x2a
1
3
a
0
1
a
0
1
a
0
2
a
0
2
a
0
2
a
0
1
a
0
1
a
0
1
a
0
1