package contest201127; import java.io.*; import java.util.ArrayDeque; import java.util.Arrays; import java.util.InputMismatchException; import java.util.Queue; // O(n^5)から落ちない・・ public class FFN { InputStream is; FastWriter out; String INPUT = ""; public void solve() { int n = ni(), m = ni(); int[] from = new int[m]; int[] to = new int[m]; for(int i = 0;i < m;i++){ from[i] = ni()-1; to[i] = ni()-1; } DJSet ds = new DJSet(n); for(int i = 0;i < m;i++){ ds.union(from[i], to[i]); } int[] ns = new int[n]; int p = 0; for(int i = 0;i < n;i++){ if(ds.upper[i] < 0){ ns[p++] = -ds.upper[i]; } } ns = Arrays.copyOf(ns, p); Arrays.sort(ns); final int mod = 998244353; if(ns.length == 1){ boolean[][] h = new boolean[n][n]; for(int i = 0;i < m;i++){ h[from[i]][to[i]] = h[to[i]][from[i]] = true; } long base = 0; { int[][] mat = new int[n-1][n-1]; for(int j = 0;j < m;j++){ int f = from[j], t = to[j]; if(f < n-1 && t < n-1) { mat[f][t]--; mat[t][f]--; } if(f < n-1)mat[f][f]++; if(t < n-1)mat[t][t]++; } base = det(mat, mod); } long ans = base; for(int k = 0;k < n;k++){ for(int l = k+1;l < n;l++){ if(!h[k][l]){ int[][] mat = new int[n-1][n-1]; for(int j = 0;j < m;j++){ int f = from[j], t = to[j]; if(f < n-1 && t < n-1) { mat[f][t]--; mat[t][f]--; } if(f < n-1)mat[f][f]++; if(t < n-1)mat[t][t]++; } { int f = k, t = l; if(f < n-1 && t < n-1) { mat[f][t]--; mat[t][f]--; } if(f < n-1)mat[f][f]++; if(t < n-1)mat[t][t]++; } // tr(det(mat, mod), mat, base); ans += det(mat, mod) - base; } } } ans %= mod; if(ans < 0)ans += mod; out.println(0); out.println(ans); }else{ int[][] b = ds.toBucket(); long ans = 1; long ansn = 0; for(int i = 0;i < n;i++){ if(b[i] != null){ ansn += (b[i].length) * (b[i].length-1)/2; int q = b[i].length; int[][] mat = new int[q-1][q-1]; for(int j = 0;j < m;j++){ if(ds.equiv(i, from[j])) { int f = Arrays.binarySearch(b[i], from[j]); int t = Arrays.binarySearch(b[i], to[j]); if(t < q-1 && f < q-1) { mat[f][t]--; mat[t][f]--; } if(f < q-1)mat[f][f]++; if(t < q-1)mat[t][t]++; } } ans = ans * det(mat, mod) % mod; } } ansn -= ns[ns.length-2] * (ns[ns.length-2]-1) / 2; ansn -= ns[ns.length-1] * (ns[ns.length-1]-1) / 2; ansn += (ns[ns.length-1] + ns[ns.length-2]) * (ns[ns.length-1]+ns[ns.length-2]-1) / 2; long ct = 0; for(int i = 0;i < ns.length;i++){ for(int j = i+1;j < ns.length;j++){ if(ns[i] == ns[ns.length-2] && ns[j] == ns[ns.length-1]){ ct += (long)ns[i] * ns[j]; } } } ans = ans * ct % mod; out.println((n*(n-1)/2-ansn)*2); out.println(ans); } } public static int[] decomposeToLUP(int[][] a, int mod) { int n = a.length; int[] row = new int[n]; for(int i = 0;i < n;i++)row[i] = i; for(int i = 0;i < n;i++){ int j = -1; for(j = i;j < n && a[j][i] == 0;j++); if(j == n)break; // swap rows if(i != j){ {int[] d = a[i]; a[i] = a[j]; a[j] = d;} {int d = row[i]; row[i] = row[j]; row[j] = d;} } long inv = invl(a[i][i], mod); for(int r = i+1;r < n;r++){ a[r][i] = (int)(a[r][i] * inv % mod); if(a[r][i] != 0){ long mul = -a[r][i]; if(mul < 0)mul += mod; for(int c = i+1;c < n;c++){ a[r][c] = (int)((a[r][c] + a[i][c] * mul) % mod); } } } } return row; } public static long invl(long a, long mod) { long b = mod; long p = 1, q = 0; while (b > 0) { long c = a / b; long d; d = a; a = b; b = d % b; d = p; p = q; q = d - c * q; } return p < 0 ? p + mod : p; } public static int[][] copy(int[][] a) { int[][] ret = new int[a.length][]; for(int i = 0;i < a.length;i++)ret[i] = Arrays.copyOf(a[i], a[i].length); return ret; } public static int det(int[][] A, int mod) { for(int i = 0;i < A.length;i++){ for(int j = 0;j < A[i].length;j++){ if(A[i][j] < 0)A[i][j] += mod; } } int[][] LU = copy(A); int[] f = decomposeToLUP(LU, mod); long det = numSwap(f) % 2 == 0 ? 1 : mod-1; for(int i = 0;i < A.length;i++){ det = det * LU[i][i] % mod; } return (int)det; } public static int numSwap(int[] f) { int n = f.length; boolean[] ved = new boolean[n]; int cycle = 0; for(int i = 0;i < n;i++){ if(!ved[i]){ cycle++; for(int j = i;!ved[j];j = f[j])ved[j] = true; } } return n-cycle; } public static int[][] enumFIF(int n, int mod) { int[] f = new int[n + 1]; int[] invf = new int[n + 1]; f[0] = 1; for (int i = 1; i <= n; i++) { f[i] = (int) ((long) f[i - 1] * i % mod); } long a = f[n]; long b = mod; long p = 1, q = 0; while (b > 0) { long c = a / b; long d; d = a; a = b; b = d % b; d = p; p = q; q = d - c * q; } invf[n] = (int) (p < 0 ? p + mod : p); for (int i = n - 1; i >= 0; i--) { invf[i] = (int) ((long) invf[i + 1] * (i + 1) % mod); } return new int[][]{f, invf}; } public static long C(int n, int r, int mod, int[][] fif) { if (n < 0 || r < 0 || r > n) return 0; return (long) fif[0][n] * fif[1][r] % mod * fif[1][n - r] % mod; } public static class DJSet { public int[] upper; public DJSet(int n) { upper = new int[n]; Arrays.fill(upper, -1); } public int root(int x) { return upper[x] < 0 ? x : (upper[x] = root(upper[x])); } public boolean equiv(int x, int y) { return root(x) == root(y); } public boolean union(int x, int y) { x = root(x); y = root(y); if (x != y) { if (upper[y] < upper[x]) { int d = x; x = y; y = d; } upper[x] += upper[y]; upper[y] = x; } return x == y; } public int count() { int ct = 0; for (int u : upper) if (u < 0) ct++; return ct; } public int[][] toBucket() { int n = upper.length; int[][] ret = new int[n][]; int[] rp = new int[n]; for (int i = 0; i < n; i++) if (upper[i] < 0) ret[i] = new int[-upper[i]]; for (int i = 0; i < n; i++) { int r = root(i); ret[r][rp[r]++] = i; } return ret; } } public static void main(String[] args) { new FFN().run(); } public void run() { long S = System.currentTimeMillis(); is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new FastWriter(System.out); solve(); out.flush(); long G = System.currentTimeMillis(); tr(G-S+"ms"); // Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){ // @Override // public void run() { // long s = System.currentTimeMillis(); // solve(); // out.flush(); // if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // } // }; // t.start(); // t.join(); } private boolean eof() { if(lenbuf == -1)return true; int lptr = ptrbuf; while(lptr < lenbuf)if(!isSpaceChar(inbuf[lptr++]))return false; try { is.mark(1000); while(true){ int b = is.read(); if(b == -1){ is.reset(); return true; }else if(!isSpaceChar(b)){ is.reset(); return false; } } } catch (IOException e) { return true; } } private final byte[] inbuf = new byte[1024]; public int lenbuf = 0, ptrbuf = 0; private int readByte() { if(lenbuf == -1)throw new InputMismatchException(); if(ptrbuf >= lenbuf){ ptrbuf = 0; try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); } if(lenbuf <= 0)return -1; } return inbuf[ptrbuf++]; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } // private boolean isSpaceChar(int c) { return !(c >= 32 && c <= 126); } private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; } private double nd() { return Double.parseDouble(ns()); } private char nc() { return (char)skip(); } private String ns() { int b = skip(); StringBuilder sb = new StringBuilder(); while(!(isSpaceChar(b))){ sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } private char[] ns(int n) { char[] buf = new char[n]; int b = skip(), p = 0; while(p < n && !(isSpaceChar(b))){ buf[p++] = (char)b; b = readByte(); } return n == p ? buf : Arrays.copyOf(buf, p); } private char[][] nm(int n, int m) { char[][] map = new char[n][]; for(int i = 0;i < n;i++)map[i] = ns(m); return map; } private int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private long[] nal(int n) { long[] a = new long[n]; for(int i = 0;i < n;i++)a[i] = nl(); return a; } private int ni() { int num = 0, b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private long nl() { long num = 0; int b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } public static class FastWriter { private static final int BUF_SIZE = 1<<13; private final byte[] buf = new byte[BUF_SIZE]; private final OutputStream out; private int ptr = 0; private FastWriter(){out = null;} public FastWriter(OutputStream os) { this.out = os; } public FastWriter(String path) { try { this.out = new FileOutputStream(path); } catch (FileNotFoundException e) { throw new RuntimeException("FastWriter"); } } public FastWriter write(byte b) { buf[ptr++] = b; if(ptr == BUF_SIZE)innerflush(); return this; } public FastWriter write(char c) { return write((byte)c); } public FastWriter write(char[] s) { for(char c : s){ buf[ptr++] = (byte)c; if(ptr == BUF_SIZE)innerflush(); } return this; } public FastWriter write(String s) { s.chars().forEach(c -> { buf[ptr++] = (byte)c; if(ptr == BUF_SIZE)innerflush(); }); return this; } private static int countDigits(int l) { if (l >= 1000000000) return 10; if (l >= 100000000) return 9; if (l >= 10000000) return 8; if (l >= 1000000) return 7; if (l >= 100000) return 6; if (l >= 10000) return 5; if (l >= 1000) return 4; if (l >= 100) return 3; if (l >= 10) return 2; return 1; } public FastWriter write(int x) { if(x == Integer.MIN_VALUE){ return write((long)x); } if(ptr + 12 >= BUF_SIZE)innerflush(); if(x < 0){ write((byte)'-'); x = -x; } int d = countDigits(x); for(int i = ptr + d - 1;i >= ptr;i--){ buf[i] = (byte)('0'+x%10); x /= 10; } ptr += d; return this; } private static int countDigits(long l) { if (l >= 1000000000000000000L) return 19; if (l >= 100000000000000000L) return 18; if (l >= 10000000000000000L) return 17; if (l >= 1000000000000000L) return 16; if (l >= 100000000000000L) return 15; if (l >= 10000000000000L) return 14; if (l >= 1000000000000L) return 13; if (l >= 100000000000L) return 12; if (l >= 10000000000L) return 11; if (l >= 1000000000L) return 10; if (l >= 100000000L) return 9; if (l >= 10000000L) return 8; if (l >= 1000000L) return 7; if (l >= 100000L) return 6; if (l >= 10000L) return 5; if (l >= 1000L) return 4; if (l >= 100L) return 3; if (l >= 10L) return 2; return 1; } public FastWriter write(long x) { if(x == Long.MIN_VALUE){ return write("" + x); } if(ptr + 21 >= BUF_SIZE)innerflush(); if(x < 0){ write((byte)'-'); x = -x; } int d = countDigits(x); for(int i = ptr + d - 1;i >= ptr;i--){ buf[i] = (byte)('0'+x%10); x /= 10; } ptr += d; return this; } public FastWriter write(double x, int precision) { if(x < 0){ write('-'); x = -x; } x += Math.pow(10, -precision)/2; // if(x < 0){ x = 0; } write((long)x).write("."); x -= (long)x; for(int i = 0;i < precision;i++){ x *= 10; write((char)('0'+(int)x)); x -= (int)x; } return this; } public FastWriter writeln(char c){ return write(c).writeln(); } public FastWriter writeln(int x){ return write(x).writeln(); } public FastWriter writeln(long x){ return write(x).writeln(); } public FastWriter writeln(double x, int precision){ return write(x, precision).writeln(); } public FastWriter write(int... xs) { boolean first = true; for(int x : xs) { if (!first) write(' '); first = false; write(x); } return this; } public FastWriter write(long... xs) { boolean first = true; for(long x : xs) { if (!first) write(' '); first = false; write(x); } return this; } public FastWriter writeln() { return write((byte)'\n'); } public FastWriter writeln(int... xs) { return write(xs).writeln(); } public FastWriter writeln(long... xs) { return write(xs).writeln(); } public FastWriter writeln(char[] line) { return write(line).writeln(); } public FastWriter writeln(char[]... map) { for(char[] line : map)write(line).writeln(); return this; } public FastWriter writeln(String s) { return write(s).writeln(); } private void innerflush() { try { out.write(buf, 0, ptr); ptr = 0; } catch (IOException e) { throw new RuntimeException("innerflush"); } } public void flush() { innerflush(); try { out.flush(); } catch (IOException e) { throw new RuntimeException("flush"); } } public FastWriter print(byte b) { return write(b); } public FastWriter print(char c) { return write(c); } public FastWriter print(char[] s) { return write(s); } public FastWriter print(String s) { return write(s); } public FastWriter print(int x) { return write(x); } public FastWriter print(long x) { return write(x); } public FastWriter print(double x, int precision) { return write(x, precision); } public FastWriter println(char c){ return writeln(c); } public FastWriter println(int x){ return writeln(x); } public FastWriter println(long x){ return writeln(x); } public FastWriter println(double x, int precision){ return writeln(x, precision); } public FastWriter print(int... xs) { return write(xs); } public FastWriter print(long... xs) { return write(xs); } public FastWriter println(int... xs) { return writeln(xs); } public FastWriter println(long... xs) { return writeln(xs); } public FastWriter println(char[] line) { return writeln(line); } public FastWriter println(char[]... map) { return writeln(map); } public FastWriter println(String s) { return writeln(s); } public FastWriter println() { return writeln(); } } public static void trnz(int... o) { for(int i = 0;i < o.length;i++)if(o[i] != 0)System.out.print(i+":"+o[i]+" "); System.out.println(); } // print ids which are 1 public static void trt(long... o) { Queue stands = new ArrayDeque<>(); for(int i = 0;i < o.length;i++){ for(long x = o[i];x != 0;x &= x-1)stands.add(i<<6|Long.numberOfTrailingZeros(x)); } System.out.println(stands); } public static void tf(boolean... r) { for(boolean x : r)System.out.print(x?'#':'.'); System.out.println(); } public static void tf(boolean[]... b) { for(boolean[] r : b) { for(boolean x : r)System.out.print(x?'#':'.'); System.out.println(); } System.out.println(); } public void tf(long[]... b) { if(INPUT.length() != 0) { for (long[] r : b) { for (long x : r) { for (int i = 0; i < 64; i++) { System.out.print(x << ~i < 0 ? '#' : '.'); } } System.out.println(); } System.out.println(); } } public void tf(long... b) { if(INPUT.length() != 0) { for (long x : b) { for (int i = 0; i < 64; i++) { System.out.print(x << ~i < 0 ? '#' : '.'); } } System.out.println(); } } private void tr(Object... o) { if(INPUT.length() != 0)System.out.println(Arrays.deepToString(o)); } }