Lampu Hias

var hour,minute,step,sekon,kpk,m,n,k,hasil,awal : int64;

function fpb(a,b : int64):int64;
begin
	if b=0 then
		begin
			fpb:=a;
			exit;
		end else
	begin
		fpb := fpb(b,a mod b);
	end;
end;

begin
	readln(m,n,k);

	awal := fpb(m,n);
	kpk  := (m*n) div awal;

	step := fpb(kpk,k);
	hasil:= (kpk * k) div step;

	if hasil > 3600 then
		begin
			hour := hasil div 3600;
			hasil := hasil mod 3600;
		end;
	if hasil > 60 then
		begin
			minute := hasil div 60;
			hasil := hasil mod 60;
		end;
	sekon := hasil;
	writeln(hour,':',minute,':',sekon);
end.