F331323113313113313123232233132312323132322331313223313231333132313311221   >>    F33132311331311331312323223313231232313232233131322331323133313231331122   <<    F331323113313113313123232233132312323132322331313223313231333132313311223   >>      F331323113313113313123232233132312323132322331313223313231333132313311222   >>