import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import java.util.Arrays; import java.util.NoSuchElementException; public class Main { public static void main(String[] args) { new Main().run(); } long pow(long a, long n) { return n!=0?pow(a*a%p,n/2)*(n%2==1?a:1)%p : 1; } long inv(long a) { return pow(a,p-2); } class Pair { long u, v; public Pair(long u, long v) { this.u=u; this.v=v; } @Override public String toString() { return "1 "+(u+1)+" "+(v+1); } } void add(ArrayList ans, long[] A, int i, int j) { A[i]=(A[i]+A[j])%p; ans.add(new Pair(i, j)); } final long p=223577; void run() { FastScanner sc = new FastScanner(); int N=sc.nextInt(); sc.nextLong(); long[] A=new long[N]; long[] B=new long[N]; for (int i=0;ix==0); boolean zb=Arrays.stream(B).allMatch(x->x==0); if (za||zb) { if (za) { System.out.println(zb?0:-1); } else { System.out.println(za?0:-1); } } else if (N==1) { long a=A[0],b=B[0]; for (int i=0;i ans=new ArrayList(); for (int shift=0;shift<20;++shift) { for (int i=0;i=0;--shift) { if ((x>>shift)%2==1) add(ans, A, t, s); if (shift>0) add(ans, A, t, t); } System.out.println(ans.size()+1); for (Pair query:ans) { System.out.println(query); } System.out.println(2); } else { throw new AssertionError(); } } static void tr(Object... objects) { System.out.println(Arrays.deepToString(objects)); } } class FastScanner { private final InputStream in = System.in; private final byte[] buffer = new byte[1024]; private int ptr = 0; private int buflen = 0; private boolean hasNextByte() { if (ptr < buflen) { return true; } else { ptr = 0; try { buflen = in.read(buffer); } catch (IOException e) { e.printStackTrace(); } if (buflen <= 0) { return false; } } return true; } private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1; } private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126; } public boolean hasNext() { while (hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte(); } public String next() { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int b = readByte(); while (isPrintableChar(b)) { sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } public long nextLong() { if (!hasNext()) throw new NoSuchElementException(); long n = 0; boolean minus = false; int b = readByte(); if (b == '-') { minus = true; b = readByte(); } if (b < '0' || '9' < b) { throw new NumberFormatException(); } while (true) { if ('0' <= b && b <= '9') { n *= 10; n += b - '0'; } else if (b == -1 || !isPrintableChar(b)) { return minus ? -n : n; } else { throw new NumberFormatException(); } b = readByte(); } } public int nextInt() { long nl = nextLong(); if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException(); return (int) nl; } public double nextDouble() { return Double.parseDouble(next()); } }