C111123313331323113313331333133313331323323221333132313231312321   >>    C11112331333132311331333133313331333132332322133313231323131232   <<    C111123313331323113313331333133313331323323221333132313231312323   >>      C111123313331323113313331333133313331323323221333132313231312322   >>