#include <iostream>
using namespace std;
int w,h;
int mp[20][20],memo[20][20];
int dx[] = {-1,0,1};
void saiki(int x,int y) {
  if(y >= h-1) memo[y][x]++;
  else if(mp[y][x] != 1) {
    for(int i=0;i<3;i++) {
      int nx = x+dx[i], ny = y+1;
      if(nx==x && mp[ny][nx] == 2)while(mp[ny][nx] == 2) ny+=2;
      if(nx <0|| nx >= w ||mp[ny][nx] == 1) continue;

      if(memo[ny][nx]>0&&mp[ny][nx]==0) memo[y][x] += memo[ny][nx];
      else if(mp[ny][nx] == 0){
	saiki(nx,ny);
	memo[y][x] += memo[ny][nx];
      }
    }
    if(memo[y][x] == 0) mp[y][x] = 1;
  }
}
int main() {
  while(1) {
    cin >> w >> h;
    if(w == 0 && h == 0) break;
    for(int i=0;i<=19;i++)
      for(int j=0;j<=19;j++)memo[i][j] = mp[i][j] = 0;
     
    for(int i=0;i<h;i++)
      for(int j=0;j<w;j++)cin >> mp[i][j];
  
    for(int i=0;i<w;i++)
      if(mp[0][i] !=1) saiki(i,0);
     
    int cnt = 0;
    for(int i=0;i<w;i++)cnt+=memo[0][i];
    cout <<cnt<<endl;
  }
  return 0;
}