#include #include using std::cin; using std::cout; const char endl = '\n'; int nxt[1000005]; std::string s, p; int main() { cin >> s >> p; nxt[0] = -1; for (int i = 1, j = -1; i < p.size(); i++) { while (j >= 0 && p[j + 1] != p[i]) j = nxt[j]; if (p[j + 1] == p[i]) j++; nxt[i] = j; } for (int i = 0, j = -1; i < s.size(); i++) { while (j != -1 && s[i] != p[j + 1]) j = nxt[j]; if (s[i] == p[j + 1]) j++; if (j == p.size() - 1) { cout << i - j + 1 << endl; j = nxt[j]; } } return 0; }