Hello, i'm new to the community and to biking in general. My problem is, i was trying to lift the bike saddle up, but i couldn't because the seatpost was stuck, so i unnattached the saddle. Right now i want to reattach it, but i can't understand how. I've been thinking and watching videos for some days, and every saddle attachment mechanism is different to mine. Here are some pictures.

. - Album on Imgur