#include #include #include #include #include #include #include #include #include #include #include static const int MOD = 998244353; using ll = long long; using uint = unsigned; using ull = unsigned long long; using namespace std; template constexpr T INF = ::numeric_limits::max() / 32 * 15 + 208; int main() { string a, b, c; cin >> a >> b >> c; cout << a[0] << b[0] << c[0] << "\n"; return 0; }