from collections import deque class Node: def __init__(self): self.child = {} self.failure = None self.valid = 0 def set_child(self, s): self.child[s] = Node() def get_child(self, s): if s not in self.child: return None return self.child[s] class AhoCorasick: def __init__(self): self.root = Node() def add(self, pattern): ptr = self.root for s in pattern: if ptr.get_child(s) is None: ptr.set_child(s) ptr = ptr.get_child(s) ptr.valid += 1 def build_failure(self): queue = deque() for s in self.root.child: ptrch = self.root.child[s] ptrch.failure = self.root queue.append(ptrch) while queue: ptr = queue.popleft() ptr.valid += ptr.failure.valid for s in ptr.child: ptrch = ptr.child[s] f = ptr.failure while f is not None and f.get_child(s) is None: f = f.failure ptrch.failure = f.get_child(s) if f is not None else self.root queue.append(ptrch) def match_count(self, text): ptr = self.root res = 0 for s in text: while ptr is not None and ptr.get_child(s) is None: ptr = ptr.failure ptr = ptr.get_child(s) if ptr is not None else self.root res += ptr.valid return res text = input() m = int(input()) c = [input() for i in range(m)] ac = AhoCorasick() for string in c: ac.add(string) ac.build_failure() print(ac.match_count(text))