a
b
x1
C
x1
b
c
x1
A
x1
c
a
x1
B
x1
A
C
x1
b
x1
C
B
x1
a
x1
B
A
x1
c
x1
a
a
a
a
a
x1
A
A
A
x1
A
A
A
A
x1
a
a
a
a
x1
b
b
b
b
b
x1
B
B
B
x1
B
B
B
B
x1
b
b
b
b
x1
c
c
c
c
c
x1
C
C
C
x1
C
C
C
C
x1
c
c
c
c
x1
B
a
a
a
a
x1
c
A
A
A
x1
A
A
A
b
x1
a
a
a
a
C
x1
C
b
b
b
b
x1
a
B
B
B
x1
B
B
B
c
x1
b
b
b
b
A
x1
A
c
c
c
c
x1
b
C
C
C
x1
C
C
C
a
x1
c
c
c
c
B
x1
a
A
x1
x1
A
a
x1
x1
b
B
x1
x1
B
b
x1
x1
c
C
x1
x1
C
c
x1
x1
a
1
b
1
C
1
c
1
A
1
B
1
FULL
./SRS/Zantema/z070.srs