//1
Var
f:text;
s,s1:string;
begin
readln(s);
assign(f,'text.txt');
reset(f);
while not Eof(f) do
read(f,s1);
close(f);
s:=s1+s;
assign(f,'text.txt');
rewrite(f);
write(f,s);
close(f);
end.
//2
Var
f:text;
s1,s2:string;
begin
assign(f,'text1.txt');
reset(f);
while not Eof(f) do
read(f,s1);
close(f);
assign(f,'text.txt');
reset(f);
while not Eof(f) do
read(f,s2);
close(f);
s1:=s1+s2;
assign(f,'text1.txt');
rewrite(f);
write(f,s1);
close(f);
end.
Var n,k,m: integer;
<span>begin
</span><span> write('n = '); readln(n);
</span><span> k:=n; m:=1;
</span><span> while k>0 do
</span><span> begin
</span><span> k:=k div 10;
</span><span> m:=m*10;
</span><span> end;
</span><span> k:=2*m*10+n*10+2;
</span><span> writeln(k);
</span><span>end.
</span>n = 78954
<span>2789542
</span>
<span>
</span>
Var a,b,c:integer;
begin
writeln('введите число');
readln(a);
for b:=10 to 99 do
begin
if (b mod a = 0) or (b div 10 = a) or (b mod 10 = a) then writeln(b);
end;
<span>end.</span>