C1111233131211111211113313231333133313331323221211111333132313331333133321   >>    C111123313121111121111331323133313331333132322121111133313231333133313332   <<    C1111233131211111211113313231333133313331323221211111333132313331333133323   >>      C1111233131211111211113313231333133313331323221211111333132313331333133322   >>