//check violation of constraints import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.NoSuchElementException; public class Main { class DJSet { int n; int[] upper; long[] weight; public DJSet(int n) { this.n = n; upper = new int[n]; weight = new long[n]; Arrays.fill(upper, -1); } void add_weight(int x, long w) { x = (int) rw(x)[0]; weight[x] += w; } // [root, weight] long[] rw(int x) { if (upper[x] < 0) { return new long[] { x, weight[x] }; } else { long[] ret = new long[2]; long[] rw = rw(upper[x]); ret[0] = rw[0]; ret[1] = rw[1] + weight[x]; weight[(int) x] = ret[1] - weight[(int) rw[0]]; upper[x] = (int) rw[0]; return ret; } } boolean equiv(int x, int y) { return rw(x)[0] == rw(y)[0]; } void setUnion(int x, int y) { x = (int) rw(x)[0]; y = (int) rw(y)[0]; if (x == y) return; if (upper[x] < upper[y]) { x ^= y; y ^= x; x ^= y; } upper[y] += upper[x]; upper[x] = y; weight[x] -= weight[y]; } } void run() { FastScanner sc = new FastScanner(); int N = sc.nextInt(); int Q = sc.nextInt(); if (!(1 <= N && N <= 5e5 && 1 <= Q && Q <= 5e5)) throw new AssertionError(); DJSet ds = new DJSet(N); PrintWriter pw = new PrintWriter(System.out); for (int q = 0; q < Q; ++q) { int T = sc.nextInt(); int A = sc.nextInt(); int B = sc.nextInt(); --A; if (T == 1) { --B; if (ds.equiv(A, B)) continue; ds.setUnion(A, B); } else if (T == 2) { ds.add_weight(A, B); } else if (T == 3) { pw.println(ds.rw(A)[1]); } } pw.close(); } public static void main(String[] args) throws FileNotFoundException { new Main().run(); } 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()); } }