#include<bits/stdc++.h>
using namespace std;
typedef  long long int ll;



int row,col,run,arr[105][105];


void longestrun(int i,int j,int x,int pre)
{
    if(arr[i][j]>=pre || i==0 || j==0 || i>row || j>col )
    {
        run=max(run,x);
        return;
    }
    longestrun(i,j+1,x+1,arr[i][j]);
    longestrun(i,j-1,x+1,arr[i][j]);
    longestrun(i+1,j,x+1,arr[i][j]);
    longestrun(i-1,j,x+1,arr[i][j]);
}

int main()
{
    string s;
    int t,cas,i,j,k,n,m;
    cin>>t;
    while(t--)
    {
        cin>>s>>row>>col;
        cout<<s<<": ";
        for(i=1; i<=row; i++)
        {
            for(j=1; j<=col; j++)
            {
                cin>>arr[i][j];
            }
        }
        run=0;
        for(i=1; i<=row; i++)
        {
            for(j=1; j<=col; j++)
            {
                longestrun(i,j+1,1,arr[i][j]);
                longestrun(i,j-1,1,arr[i][j]);
                longestrun(i+1,j,1,arr[i][j]);
                longestrun(i-1,j,1,arr[i][j]);
            }
        }
        cout<<run<<endl;
    }
    return 0;
}