F331323113313113313123232233132312323132322331313223313231333132212311   >>    F33132311331311331312323223313231232313232233131322331323133313221231   <<    F331323113313113313123232233132312323132322331313223313231333132212313   >>      F331323113313113313123232233132312323132322331313223313231333132212312   >>