C11112331333132311331333131333133313231333132212111133132313231132311   >>    C1111233133313231133133313133313331323133313221211113313231323113231   <<    C11112331333132311331333131333133313231333132212111133132313231132313   >>      C11112331333132311331333131333133313231333132212111133132313231132312   >>