Consider that the coordinating atoms of the ligands in cis-[Co(NH$$_3$$)$$_4$$Cl$$_2$$]Cl and mer-[Co(NH$$_3$$)$$_3$$Cl$$_3$$] octahedral complexes are at the vertices of an octahedron. The sum of total number of the triangular faces in both the complexes having one N atom and two Cl atoms at their corners is ___.