100 OPEN 1,8,15
110 OPEN 2,8,2,"#"
112 FOR I=0 TO 21
115 : PRINT#1,"B-P:";2;1
120 : PRINT#2,"SEKTOR"+STR$(I)
130 : PRINT#1,"U2:";2;0;1;I
132 NEXT I
140 :
145 FOR I=0 TO 21
150 : PRINT#1,"U1:";2;0;1;I
155 : PRINT#1,"B-P:";2;1
160 : INPUT#2,A$
170 : PRINT A$
175 NEXT I
180 CLOSE 1:CLOSE 2