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Cod sursa(job #110217)
var a,b:array[1..500000]of longint;
n,lena,lenb,i:longint;
begin
assign(input,'multimi2.in');reset(input);
assign(output,'multimi2.out');rewrite(output);
readln(n);
lena:=0;lenb:=0;
while n>3 do begin
inc(lena);
a[lena]:=n;
inc(lena);
a[lena]:=n-3;
inc(lenb);
b[lenb]:=n-1;
inc(lenb);
b[lenb]:=n-2;
n:=n-4;
end;
case n of
3 : begin writeln('0');
inc(lena);a[lena]:=2;
inc(lena);a[lena]:=1;
writeln(lena);
for i:=lena downto 1 do write(a[i],' ');
writeln;
inc(lenb);b[lenb]:=3;
writeln(lenb);
for i:=lenb downto 1 do write(b[i],' ');
end;
2 : begin writeln('1');
inc(lena);a[lena]:=2;
writeln(lena);
for i:=lena downto 1 do write(a[i],' ');
writeln;
inc(lenb);b[lenb]:=1;
writeln(lenb);
for i:=lenb downto 1 do write(b[i],' ');
end;
1 : begin writeln('1');
inc(lena);a[lena]:=1;
writeln(lena);
for i:=lena downto 1 do write(a[i],' ');
writeln;
writeln(lenb);
for i:=lenb downto 1 do write(b[i],' ');
end;
0 : begin writeln('0');
writeln(lena);
for i:=lena downto 1 do write(a[i],' ');
writeln;
writeln(lenb);
for i:=lenb downto 1 do write(b[i],' ');
end;
end;
end.