C11321132322331323331323132312312111113231333132312113313221231   >>    C1132113232233132333132313231231211111323133313231211331322123   <<    C11321132322331323331323132312312111113231333132312113313221233   >>      C11321132322331323331323132312312111113231333132312113313221232   >>