from collections import defaultdict from string import ascii_lowercase n,*s=open(0).read().split() n=int(n) d=defaultdict(int) for t in s: d[t]+=1 for t in s: o=0 for i in range(len(t)): for c in list(ascii_lowercase): if t[i]==c:continue o+=d[t[:i]+c+t[i+1:]] print(o)