#include #include using u32 = unsigned int; using u64 = unsigned long long int; constexpr u32 mod = 1234567891; std::vector A; int main(){ u32 n; u64 m; std::cin >> n >> m; for(u32 i = 0; i < n; i++){ u32 x; std::cin >> x; A.push_back(x); } std::vector num(2*50*500); num[0] = 1; u32 deg = 0; for(; m; m >>= 1){ for(u32 &a: A){ if(a & 1){ deg += a; for(u32 i = deg; i >= a; i--){ num[i] += num[i-a]; if(num[i] >= mod) num[i] -= mod; } } else a >>= 1; } for(u32 i = m & 1; i <= deg; i += 2) num[i/2] = num[i]; for(u32 i = deg/2 + 1; i <= deg; i++) num[i] = 0; deg >>= 1; } printf("%u\n", num[0]); return 0; }