#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define debug_value(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << #x << "=" << x << endl; #define debug(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << x << endl; template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } using namespace std; typedef long long ll; template vector> vec2d(int n, int m, T v){ return vector>(n, vector(m, v)); } template vector>> vec3d(int n, int m, int k, T v){ return vector>>(n, vector>(m, vector(k, v))); } template void print_vector(vector v, char delimiter=' '){ if(v.empty()) { cout << endl; return; } for(int i = 0; i+1 < v.size(); i++) cout << v[i] << delimiter; cout << v.back() << endl; } using mint = atcoder::modint998244353; ostream& operator<<(ostream& os, const mint& m){ os << m.val(); return os; } int main(){ ios::sync_with_stdio(false); cin.tie(0); cout << setprecision(10) << fixed; int n, q; cin >> n >> q; vector data(n, -1); vector parity(n); vector> components(n); for(int i = 0; i < n; i++) components[i].push_back(i); function root = [&](int x) { return data[x] < 0 ? x : root(data[x]); }; function size = [&](int x) { return -data[root(x)]; }; auto unite = [&](int x, int y) { x = root(x); y = root(y); if (x != y) { if (data[y] < data[x]) swap(x, y); data[x] += data[y]; data[y] = x; for(int v: components[y]){ components[x].push_back(v); } components[y].clear(); } return x != y; }; auto same = [&](int x, int y) { return root(x) == root(y); }; mint ans = mint(2).pow(n); vector buf; auto clear = [&](){ for(int v: buf){ parity[v] = 0; data[v] = -1; components[v] = {v}; } ans = mint(2).pow(n); buf.clear(); }; while(q--){ int t; cin >> t; if(t == 1 || t == 2){ int p = t-1; int u, v; cin >> u >> v; u--; v--; if(same(u, v)){ if((parity[u]^p) != parity[v]){ ans = 0; } }else{ int us = size(u), vs = size(v); if(us > vs) swap(us, vs); if((parity[u]^p) != parity[v]){ int ur = root(u); for(int x: components[ur]) parity[x] ^= 1; } ans /= 2; unite(u, v); } buf.push_back(u); buf.push_back(v); }else{ clear(); } cout << ans << endl; } }