C1211223331322331312323131133132223132313231333132322132112313231   >>    C121122333132233131232313113313222313231323133313232213211231323   <<    C1211223331322331312323131133132223132313231333132322132112313233   >>      C1211223331322331312323131133132223132313231333132322132112313232   >>