#include <cstdio>
#define NMAX 1010
using namespace std;
FILE *fin=fopen("cifre13.in","r");
FILE *fout=fopen("cifre13.out","w");
bool c[10][7][4]={
{0,1,1,0,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,0,1,1,0},
{0,0,1,0,0,1,1,0,1,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,1,1,1},
{0,1,1,0,1,0,0,1,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,1,1,1,1},
{0,1,1,0,1,0,0,1,1,0,0,1,0,0,1,0,1,0,0,1,1,0,0,1,0,1,1,0},
{0,0,1,0,0,1,0,0,1,0,0,0,1,1,1,1,0,0,1,0,0,0,1,0,0,0,1,0},
{0,1,1,1,1,0,0,0,1,0,0,0,0,1,1,0,0,0,0,1,1,0,0,1,0,1,1,0},
{0,1,1,0,1,0,0,1,1,0,0,0,1,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0},
{1,1,1,1,0,0,0,1,0,0,1,0,0,0,1,0,0,1,0,0,0,1,0,0,0,1,0,0},
{0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0},
{0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,1,0,0,0,1,1,0,0,1,0,1,1,0}
};
bool A[NMAX][NMAX];
int N, M, C;
int main()
{int t,lin,col,i,j,x, sum=0;
 fscanf(fin,"%d%d%d",&N, &M, &C);
 for (x=0; x<C; x++)
     {
      fscanf(fin,"%d%d%d",&t,&lin, &col);
      for (i=0; i<7; i++)
           for (j=0; j<4; j++)
               A[i+lin][j+col]=A[i+lin][j+col]||c[t][i][j];
     }
  for (i=1; i<=N; i++)
      for (j=1; j<=M; j++)
          sum=sum+A[i][j];
  fprintf(fout,"%d\n",sum);
  fclose(fout);
  return 0;
}