#include <iostream> using namespace std; int main() { string s; while (getline(cin, s)) { string a, b; getline(cin, a); getline(cin, b); int found = s.find(a); //找第一次出现位置 while (found < s.size()) { if ((found == 0&& s[found + a.length()] == ' ') || (s[found - 1] == ' ' && s[...