C21111113313132322331323331323113313233313331323133313113313223231   >>    C2111111331313232233132333132311331323331333132313331311331322323   <<    C21111113313132322331323331323113313233313331323133313113313223233   >>      C21111113313132322331323331323113313233313331323133313113313223232   >>