VAR
s1, s2: STRING;
BEGIN
WRITE('s1=');
READLN(s1);
WRITE('s2=');
READLN(s2);
REPEAT
IF Pos(s2, s1) > 0
THEN
Delete(s1, Pos(s2, s1), Length(s2))
UNTIL Pos(s2, s1) = 0;
WRITELN('s1=''', s1, '''');
READLN
END.
VAR
s1, s2: STRING;
BEGIN
WRITE('s1=');
READLN(s1);
WRITE('s2=');
READLN(s2);
REPEAT
IF Pos(s2, s1) > 0
THEN
Delete(s1, Pos(s2, s1), Length(s2))
UNTIL Pos(s2, s1) = 0;
WRITELN('s1=''', s1, '''');
READLN
END.