Match {:(,"Bond type",,"Bond length "(A^(@))),(A,C-H,1,1.09),(B,C-C,2,1.54),(C,C-N,3,1.47),(D,C-O,4,1.43):}

Match {:(,"Bond type",,"Bond length "(A^(@))),(A,C-H,1,1.09),(B,C-C,2,

1.	Match {:(,"Bond type",,"Bond length "(A^(@))),(A,C-H,1,1.09),(B,C-C,2,1.54),(C,C-N,3,1.47),(D,C-O,4,1.43):}
Answer» `{:(A,B,C,D),(1,2,3,4):}` `{:(A,B,C,D),(2,3,1,4):}` `{:(A,B,C,D),(3,2,1,4):}` `{:(A,B,C,D),(4,3,2,1):}` ANSWER :a