C11111333133313232233133313331333133313231312331323133313121331   >>    C1111133313331323223313331333133313331323131233132313331312133   <<    C11111333133313232233133313331333133313231312331323133313121333   >>      C11111333133313232233133313331333133313231312331323133313121332   >>