#include <bits/stdc++.h>
using namespace std;

//const int  MN = 1e6 + 6;

int n,m,p,q;

char x;

//bool a[MN][MN],b[MN][MN];
/*
void pulni(int k, int l, int a[], int b[]){
	
	int ti,tj;
	int i,j;
	bool f;
	
	i=k;j=l;
	f=0;
	ti=0;tj=1;
	while(1){
		
		i+=ti;
		j+=tj;
		
		if(i>n || j>m)break;
		
		b[i][j]=1;
		
		if(a[i][j]==1){
			
			if(f==1)break;
			
			ti=1;tj=0;
			
		}
		
	}
	
	
	i=k;j=l;
	f=0;
	ti=1;tj=0;
	while(1){
		
		i+=ti;
		j+=tj;
		
		if(i>n || j>m)break;
		
		b[i][j]=1;
		
		if(a[i][j]==1){
			
			if(f==1)break;
			
			ti=0;tj=1;
			
		}
		
	}
	
}
*/
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	
	freopen("note.in", "r", stdin);
	freopen("note.out", "w", stdout);
	
	cin>>n>>m;
	
	bool a[n+3][m+3],b[n+3][m+3];
	
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			
			cin>>x;
			
			if(x=='L'){
				p=i;q=j;
				a[i][j]=0;
			}
			else {
				a[i][j]=x-'0';
			}
			
		}
	}
	
	
	int ti,tj;
	int ii,jj;
	//bool f;
	
	
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			
			if(b[i][j]==0 && a[i][j]==0){
				//pulni(i,j,a,b);
				
				
				
				ii=i;jj=j;
				//f=0;
				ti=0;tj=1;
				while(1){
					
					ii+=ti;
					jj+=tj;
					
					if(ii>n || jj>m)break;
					
					b[ii][jj]=1;
					
					if(a[ii][jj]==1){
						
						//if(f==1)break;
						
						if(ti==0){ti=1;tj=0;}
						else{ti=0;tj=1;}
						
					}
					
				}
				
				
				ii=i;jj=j;
				//f=0;
				ti=1;tj=0;
				while(1){
					
					ii+=ti;
					jj+=tj;
					
					if(ii>n || jj>m)break;
					
					b[ii][jj]=1;
					
					if(a[ii][jj]==1){
						
						//if(f==1)break;
						
						if(ti==0){ti=1;tj=0;}
						else{ti=0;tj=1;}
						
					}
					
				}
				
				
				
				
			}
			
		}
	}
	
	
	if(b[p][q]==1)cout<<"L";
	else cout<<"K";
	
	
	
	
	
	
	
	
	
	
	
	
	return 0;
}