C11112331312111112111133132313331333133313232212111113331333131333133321131   >>    C1111233131211111211113313231333133313331323221211111333133313133313332113   <<    C11112331312111112111133132313331333133313232212111113331333131333133321133   >>      C11112331312111112111133132313331333133313232212111113331333131333133321132   >>