C1111233133313231133133313331323133313113313121111133313233211321   >>    C111123313331323113313331333132313331311331312111113331323321132   <<    C1111233133313231133133313331323133313113313121111133313233211323   >>      C1111233133313231133133313331323133313113313121111133313233211322   >>