Ck-66
c
a
1 PM1 PM2
.........
............ ..
b
a
:
PM1
INT
b
:
PM1
PRN
c
:
PM2
BAL
1 PM1
PM2
......... ..........
.....
d
e
d
:
PM1
PM2
Σ
PRN
e
:
PM1
PM2
Σ
INT
