#define _CRT_SECURE_NO_WARNINGS #define _SILENCE_CXX17_C_HEADER_DEPRECATION_WARNING #include using namespace std; int main() { int T; scanf("%d", &T); while (T--) { string s, t; cin >> s >> t; int sl = s.length(); int tl = t.length(); if (sl - 2 != tl) { puts("0"); continue; } int cur = 0, cut = 0; bool ok = 1; for (int i = 0; i < sl; i++) { if (s[i] == t[cur]) { cur++; continue; } else { cut++; } if (cut > 2) ok = 0; } if (ok && cut == 2) puts("1"); else puts("0"); } return 0; }