long d[2][500][500];
long a[500][500];
int main(){
	long h,w;
	scanf("%ld%ld",&h,&w);
	for(long y=0;y<h;++y){
		for(long x=0;x<w;++x){
			scanf("%ld",&a[y][x]);
		}
	}
	d[0][0][0]=a[0][0];
	for(long f=0;f<2;++f){
		for(long y=0;y<h;++y){
			for(long x=0;x<w;++x){
				if(y<h-1){
					if(d[f][y][x]>a[y+1][x]&&d[f][y+1][x]<d[f][y][x]+a[y+1][x]){
						d[f][y+1][x]=d[f][y][x]+a[y+1][x];
					}
					if(f==0&&d[1][y+1][x]<d[0][y][x]){
						d[1][y+1][x]=d[0][y][x];
					}
				}
				if(x<w-1){
					if(d[f][y][x]>a[y][x+1]&&d[f][y][x+1]<d[f][y][x]+a[y][x+1]){
						d[f][y][x+1]=d[f][y][x]+a[y][x+1];
					}
					if(f==0&&d[1][y][x+1]<d[0][y][x]){
						d[1][y][x+1]=d[0][y][x];
					}
				}
			}
		}
	}
	puts(d[0][h-1][w-1]|d[1][h-1][w-1]>a[h-1][w-1]?"Yes":"No");
}