C11321132322331323331323132312312111113231333132312113313231333132313232212321   >>    C1132113232233132333132313231231211111323133313231211331323133313231323221232   <<    C11321132322331323331323132312312111113231333132312113313231333132313232212323   >>      C11321132322331323331323132312312111113231333132312113313231333132313232212322   >>