C11112331333132311331333133313331333132311213331333133322331323321   >>    C1111233133313231133133313331333133313231121333133313332233132332   <<    C11112331333132311331333133313331333132311213331333133322331323323   >>      C11112331333132311331333133313331333132311213331333133322331323322   >>