Problem: Kris works in a large company "Blake Technologies". As a best engineer of the company he was assigned a task to develop a printer that will be able to print horizontal and vertical strips. First prototype is already built and Kris wants to tests it. He wants you to implement the program that checks the result of the printing.

Printer works with a rectangular sheet of paper of size n × m. Consider the list as a table consisting of n rows and m columns. Rows are numbered from top to bottom with integers from 1 to n, while columns are numbered from left to right with integers from 1 to m. Initially, all cells are painted in color 0.

Your program has to support two operations: 

  1. Paint all cells in row ri in color ai; 
  2. Paint all cells in column ci in color ai. 



If during some operation i there is a cell that have already been painted, the color of this cell also changes to ai.

Your program has to print the resulting table after k operation.

Input

The first line of the input contains three integers n, m and k (1 ≤ n, m ≤ 5000, n·m ≤ 100 000, 1 ≤ k ≤ 100 000) — the dimensions of the sheet and the number of operations, respectively.

Each of the next k lines contains the description of exactly one query: 

  * 1 ri ai (1 ≤ ri ≤ n, 1 ≤ ai ≤ 109), means that row ri is painted in color ai; 
  * 2 ci ai (1 ≤ ci ≤ m, 1 ≤ ai ≤ 109), means that column ci is painted in color ai. 

Output

Print n lines containing m integers each — the resulting table after all operations are applied.

Examples

Input

3 3 3
1 1 3
2 2 1
1 2 2


Output

3 1 3 
2 2 2 
0 1 0 


Input

5 3 5
1 1 1
1 3 1
1 5 1
2 1 1
2 3 1


Output

1 1 1 
1 0 1 
1 1 1 
1 0 1 
1 1 1 

Note

The figure below shows all three operations for the first sample step by step. The cells that were painted on the corresponding step are marked gray. 

<image>

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
long long mInv[41];
long long fact[41];
long long factInv[41];
map<long, long> mymap;
long long heights[5];
long long segTree[3];
long nums[5005];
long g[5005];
vector<long> primes;
vector<long> badPrimes;
long funcVal[1000006];
long long N;
set<string> dictionary;
set<string>::iterator it;
pair<set<string>::iterator, bool> ret;
long long gcd(long long a, long long b) {
  if (b == 0) return a;
  if (a % b == 0) return b;
  return gcd(b, a % b);
}
long long getmoduloInv(long long n) {
  if (n == 1) return 1;
  if (mInv[n] > 0) return mInv[n];
  long long m = (-1 * 1000000007) / n;
  m += 1000000007;
  m *= getmoduloInv(1000000007 % n);
  mInv[n] = (m % 1000000007);
  return mInv[n];
}
vector<long> get_primes(unsigned long maxN) {
  char *sieve;
  sieve = new char[maxN / 8 + 1];
  long m = (maxN / 8) + 1;
  for (long long i = 0; i < m; i++) sieve[i] = 255;
  for (unsigned long x = 2; x <= maxN; x++)
    if (sieve[x / 8] & (0x01 << (x % 8))) {
      primes.push_back(x);
      for (unsigned long j = 2 * x; j <= maxN; j += x)
        sieve[j / 8] &= ~(0x01 << (j % 8));
    }
  delete[] sieve;
  return primes;
}
long long getPow(long long b, long long p) {
  if (b < 2 || p == 1) return b;
  if (p == 0) return 1;
  long long val = getPow(b, p / 2);
  val *= val;
  val %= 1000000007;
  if (p % 2 == 1) {
    val *= b;
    val %= 1000000007;
  }
  return val;
}
void buildSegTree(long node, long b, long e) {
  if (b == e)
    segTree[node] = b;
  else {
    long mid = (b + e) / 2;
    buildSegTree(node * 2, b, mid);
    buildSegTree(1 + node * 2, mid + 1, e);
    if (heights[segTree[node * 2]] <= heights[segTree[1 + node * 2]])
      segTree[node] = segTree[node * 2];
    else
      segTree[node] = segTree[1 + node * 2];
  }
}
long long getMin(long node, long segBeg, long segEnd, long qBeg, long qEnd) {
  if (segEnd < qBeg || segBeg > qEnd) return N + 1;
  if (segBeg >= qBeg && segEnd <= qEnd) return segTree[node];
  long mid = (segBeg + segEnd) / 2;
  long fh = getMin(node * 2, segBeg, mid, qBeg, qEnd);
  long sh = getMin(1 + node * 2, mid + 1, segEnd, qBeg, qEnd);
  if (heights[sh] < heights[fh]) return sh;
  return fh;
}
string genMinString(long long val) {
  long len = val / 9, firstDigit = val % 9;
  string s = "";
  if (firstDigit > 0) {
    char ch = '0' + firstDigit;
    s = ch + s;
  }
  for (long i = 0; i < len; i++) s = s + "9";
  return s;
}
long maxBuild;
vector<long> mult(vector<long> A, vector<long> B) {
  long len1 = A.size(), len2 = B.size();
  vector<long> C;
  for (long i = 0; i < len1; i++) {
    long carry = 0;
    for (long j = 0; j < len2; j++) {
      long pos = i + j;
      long val = carry + (A[i] * B[j]);
      carry = val / 10;
      val = val % 10;
      if (pos >= C.size()) {
        C.push_back(val);
      } else {
        C[pos] += val;
        carry = C[pos] / 10;
        C[pos] = C[pos] % 10;
      }
    }
    if (carry > 0) C.push_back(carry);
  }
  return C;
}
vector<long> getVal(long power) {
  vector<long> C;
  C.push_back(5);
  if (power == 1) return C;
  vector<long> B = getVal(power / 2);
  B = mult(B, B);
  if (power % 2 == 1) B = mult(B, C);
  return B;
}
long getZeros(long fives) {
  long ans = 0;
  while (fives > 0) {
    ans += fives;
    fives /= 5;
  }
  return ans;
}
long long getPow(long zeros) {
  long val = ((zeros * 4) / 5) - 1;
  while (getZeros(val) < zeros) val++;
  if (getZeros(val) == zeros) return val;
  return -1;
}
long long rowVal[5050], colVal[5050];
long long rowAlter[5050], colAlter[5050];
int main(void) {
  long long test_cases = 1, l, r, seed = 1, maxVal;
  vector<string> originalStrings;
  long long curNum;
  long long m, n, k;
  long long ans = 0;
  for (long T = 0; T < test_cases; T++) {
    cin >> n >> m >> k;
    long rv, cv, av;
    memset(rowVal, 0, sizeof(rowVal));
    memset(colVal, 0, sizeof(colVal));
    memset(rowAlter, -1, sizeof(rowAlter));
    memset(colAlter, -1, sizeof(colAlter));
    for (long i = 0; i < k; i++) {
      scanf("%ld", &av);
      scanf("%ld", &rv);
      rv--;
      scanf("%ld", &cv);
      if (av == 1) {
        rowVal[rv] = cv;
        rowAlter[rv] = i;
      } else {
        colVal[rv] = cv;
        colAlter[rv] = i;
      }
    }
    for (long i = 0; i < n; i++) {
      for (long j = 0; j < m; j++) {
        if (rowAlter[i] > colAlter[j])
          printf("%ld ", rowVal[i]);
        else
          printf("%ld ", colVal[j]);
      }
      cout << endl;
    }
  }
  return 0;
}