C3132121111331312113313331333133313231323133313331333132233133322122321   >>    C313212111133131211331333133313331323132313331333133313223313332212232   <<    C3132121111331312113313331333133313231323133313331333132233133322122323   >>      C3132121111331312113313331333133313231323133313331333132233133322122322   >>