Variable is 0

3 3
1 2 3
4 5 6
7 8 9

3 3
1 2 3
4 5 6
7 8 9

string[] nm = Console.ReadLine().Split(' ');
int n = Convert.ToInt32(nm[0]);
int m = Convert.ToInt32(nm[1]);

int[][] h = new int[n][];

for (int i = 0; i < n; i++){
    string[] line = Console.ReadLine().Split(' ');
    for (int j = 0;j<line.Length;j++){
        h[i] = new int[m];
        h[i][j] = Convert.ToInt32(line[j]);
    }

}
Console.WriteLine();
int sor=0;
int max=h[0][0];
for (int i = 0; i < n; i++)
{
    for (int j = 0; j < m; j++)
    {
        if(max < h[i][j]){
            sor=i;
            max=h[i][j];
        }
    }
}

int min = h[sor][0];

for (int i = 0; i < m; i++)
{
    if(h[sor][i]<min){
        min = h[sor][i];
    }
}
Console.WriteLine("{0}", min);

int db = 0;
List<int> k = new List<int>();
for (int i = 0; i < m; i++)
{
    if(h[sor][i] == min){
        db++;
        k.Add(i);
    }
}
//k=k.Select(x => x+1).ToList();
Console.WriteLine("{0} {1}",db,string.Join(" ",k));

string[] nm = Console.ReadLine().Split(' ');
int n = Convert.ToInt32(nm[0]);
int m = Convert.ToInt32(nm[1]);

int[][] h = new int[n][];

for (int i = 0; i < n; i++){
    string[] line = Console.ReadLine().Split(' ');
    for (int j = 0;j<line.Length;j++){
        h[i] = new int[m];
        h[i][j] = Convert.ToInt32(line[j]);
    }

}
Console.WriteLine();
int sor=0;
int max=h[0][0];
for (int i = 0; i < n; i++)
{
    for (int j = 0; j < m; j++)
    {
        if(max < h[i][j]){
            sor=i;
            max=h[i][j];
        }
    }
}

int min = h[sor][0];

for (int i = 0; i < m; i++)
{
    if(h[sor][i]<min){
        min = h[sor][i];
    }
}
Console.WriteLine("{0}", min);

int db = 0;
List<int> k = new List<int>();
for (int i = 0; i < m; i++)
{
    if(h[sor][i] == min){
        db++;
        k.Add(i);
    }
}
//k=k.Select(x => x+1).ToList();
Console.WriteLine("{0} {1}",db,string.Join(" ",k));