C11112331333132311331333133313331333132313221213231323132313231311   >>    C1111233133313231133133313331333133313231322121323132313231323131   <<    C11112331333132311331333133313331333132313221213231323132313231313   >>      C11112331333132311331333133313331333132313221213231323132313231312   >>