import std.stdio, std.conv, std.functional, std.string;
import std.algorithm, std.array, std.container, std.range, std.typecons;
import std.bigint, std.numeric, std.math, std.random;
import core.bitop;

string FMT_F = "%.10f";

static File _f;
void file_io(string fn) { _f = File(fn, "r"); }
static string[] s_rd;
T _RD(T = long)() { while(!s_rd.length) s_rd = readln.chomp.split; string res = s_rd[0]; s_rd.popFront; return res.to!T; }
T _RD(T = long)(File f) { while(!s_rd.length) s_rd = f.readln.chomp.split; string res = s_rd[0]; s_rd.popFront; return res.to!T; }
T[] _RDA(T = long)(T fix = 0) { auto r = readln.chomp.split.to!(T[]); r[] += fix; return r; }
T[] _RDA(T = long)(File f, T fix = 0) { auto r = f.readln.chomp.split.to!(T[]); r[] += fix; return r; }
T RD(T = long)() { if (_f.isOpen) return _RD!T(_f); else return _RD!T; }
T[] RDA(T = long)(T fix = 0) { if (_f.isOpen)  return _RDA!T(_f, fix); else return _RDA!T(fix); }

size_t[] MAKE_IDX(alias less = "a < b", Range)(Range range) { auto idx = new size_t[](range.length); makeIndex!(less)(range, idx); return idx;}
size_t MIN_POS(alias less = "a < b", Range)(Range range) { auto r = minPos!(less)(range); return range.length - r.length; }

void chmin(T)(ref T x, T y) { x = min(x, y); } void chmax(T)(ref T x, T y) { x = max(x, y); }
bool inside(T)(T x, T b, T e) { return x >= b && x < e; }
long lcm(long x, long y) { return x * (y / gcd(x, y)); }

long mod = 10^^9 + 7;
//long mod = 998244353;
//long mod = 1_000_003;
void moda(ref long x, long y) { x = (x + y) % mod; }
void mods(ref long x, long y) { x = ((x + mod) - (y % mod)) % mod; }
void modm(ref long x, long y) { x = (x * y) % mod; }

void main()
{
	auto t = RD!int;
	auto ans = new int[](t);
	foreach (ti; 0..t)
	{
		auto r = RD!int;
		auto c = RD!int;
		auto s = new string[](r);
		foreach (y; 0..r)
			s[y] = RD!string;
		bool ok1, ok2;
		{
			ok1 = true;
			foreach (y; 0..r)
			{
				foreach (x; 0..c)
				{
					if (s[y][x] == 'P')
					{
						ok1 = false;
					}
					else
					{
						ok2 = true;
					}
				}
			}
			if (ok1)
			{
				ans[ti] = 0;
				continue;
			}
		}
		{
			bool tmp1 = true;
			bool tmp2 = true;
			foreach (x; 0..c)
			{
				if (s[0][x] == 'P')
					tmp1 = false;
				if (s[$-1][x] == 'P')
					tmp2 = false;
			}
			bool tmp3 = true;
			bool tmp4 = true;
			foreach (y; 0..r)
			{
				if (s[y][0] == 'P')
					tmp3 = false;
				if (s[y][$-1] == 'P')
					tmp4 = false;
			}
			if (tmp1 || tmp2 || tmp3 || tmp4)
			{
				ans[ti] = 1;
				continue;
			}
		}
		{
			if (s[0][0] == 'A' || s[r-1][0] == 'A' || s[0][c-1] == 'A' || s[r-1][c-1] == 'A')
			{
				ans[ti] = 2;
				continue;
			}
			bool ok;
			foreach (y; 0..r)
			{
				bool tmp = true;
				foreach (x; 0..c)
				{
					if (s[y][x] == 'P')
					{
						tmp = false;
						break;
					}
				}
				if (tmp)
				{
					ok = true;
					break;
				}
			}
			if (ok)
			{
				ans[ti] = 2;
				continue;
			}
			foreach (x; 0..c)
			{
				bool tmp = true;
				foreach (y; 0..r)
				{
					if (s[y][x] == 'P')
					{
						tmp = false;
						break;
					}
				}
				if (tmp)
				{
					ok = true;
					break;
				}
			}
			if (ok)
			{
				ans[ti] = 2;
				continue;
			}
		}
		{
			bool tmp1, tmp2;
			foreach (x; 0..c)
			{
				if (s[0][x] == 'A')
					tmp1 = true;
				if (s[$-1][x] == 'A')
					tmp2 = true;
			}
			bool tmp3, tmp4;
			foreach (y; 0..r)
			{
				if (s[y][0] == 'A')
					tmp3 = true;
				if (s[y][$-1] == 'A')
					tmp4 = true;
			}
			if (tmp1 || tmp2 || tmp3 || tmp4)
			{
				ans[ti] = 3;
				continue;
			}
		}
		if (ok2)
		{
			ans[ti] = 4;
		}
		else
		{
			ans[ti] = -1;
		}
	}
	foreach (e; ans)
	{
		if (e == -1)
			writeln("MORTAL");
		else
			writeln(e);
	}

	stdout.flush;
	debug readln;
}