**NIGHT MISSION
SET PAT2 BB AB DF /
READ
CHANGE SS DHDR
TSTART PAT2 STAT 2
IF FAIL 2 THEN TSTART DOS PAT1 STAT 1
IF FAIL 1 THEN TSTART LONG SS
TEND REPEAT
DISPLAY
TSTART BSPACE
TEND FSPACE 3
VSTART NORM
LABEL 1:WRITE STAT 1
IF SUCC 1 THEN GOTO EE
SHORTEN ALL EQUAL BY 2 STAT 5
IF FAIL 5 THEN GOTO DD
CLEAR ERROR : GOTO 1
LABEL DD
SHORTEN ALL CENTER BY 2 STAT 6
IF FAIL 6 GOTO DA
CLEAR ERROR : GOTO 1
LABEL DA: * SHORTENING FAILED
LABEL EE: * WRITE SUCCEEDED
COPY 0 15 1

***
