0 -> cLm
cLm -> 0
0 -> cLc
cLc <-> cLn
cLc -> 0
cLn -> 0
0 -> cTm
cTm -> 0
cYc <-> cYn
cYn -> 0
0 -> cYc
cYc -> 0
cXc <-> cXn
cXc -> 0
0 -> cXc
cXn -> 0
0 -> cAc
cAc <-> cAn
cAc -> 0
cAn -> 0
0 -> cPn
cPn -> 0
cPn -> 0
0 -> cAm
0 -> cAm
cAm -> 0
0 -> cXm
cXm -> 0
0 -> cTc
cTc <-> cTn
cTc -> 0
cTc -> 0
cTn -> 0
cTn -> 0
0 -> cYm
cYm -> 0