uses crt;
var a:array[1..12] of integer;
i,k,j:integer;
begin
clrscr;
for i:=1 to 12 do
begin
a[i]:=random(70)-40;
write(a[i],' ');
end;
writeln;
i:=1;
repeat
k:=a[12];
j:=11;
while j>=i+1 do
begin
a[j+1]:=a[j];
j:=j-1;
end;
a[i+1]:=k;
i:=i+2;
until(i>=12);
for i:=1 to 12 do
write(a[i],' ');
readln;
end.