C1111233133313231133133313331333133313231331121323133313232323321   >>    C111123313331323113313331333133313331323133112132313331323232332   <<    C1111233133313231133133313331333133313231331121323133313232323323   >>      C1111233133313231133133313331333133313231331121323133313232323322   >>