mod = 998244353 def main(): import sys input = sys.stdin.readline N = int(input()) S = [] for _ in range(N): S.append(input().rstrip('\n')) T = {} for s in S: for i in range(len(s)): t = s[:i] + "$" + s[i+1:] if t not in T: T[t] = 0 T[t] += 1 for s in S: ans = 0 for i in range(len(s)): t = s[:i] + "$" + s[i+1:] ans += T[t] - 1 print(ans) if __name__ == '__main__': main()