C31232233133313221211113313331333132313232233133313231323211321   >>    C3123223313331322121111331333133313231323223313331323132321132   <<    C31232233133313221211113313331333132313232233133313231323211323   >>      C31232233133313221211113313331333132313232233133313231323211322   >>