C312312111111331312111133132313331333132313331323221323132333132322131   >>    C31231211111133131211113313231333133313231333132322132313233313232213   <<    C312312111111331312111133132313331333132313331323221323132333132322133   >>      C312312111111331312111133132313331333132313331323221323132333132322132   >>