#include<bits/stdc++.h>
using namespace std;
int N,M;
char pole[1000001];
int dali[1000001];


// posoka 0 - nadolu
// posoka 1 - nadqsno
// pechelq 0 - gubeshta
// pechelq 1 - pecheliwshta

int otgore[1000001];
int otlqwo[1000001];
/*/
void dfs(int x,int y,int posoka,int pechelq){
    if(dali[x*M+y]!=-1){
        return ;
    }
    if(pole[x*M+y]=='0' || pole[x*M+y]=='L'){
        if(pechelq==0){
            dali[x*M+y]=0;
            if(x!=N-1){
                dfs(x+1,y,0,1);
            }if(y!=M-1){
                dfs(x,y+1,1,1);
            }
        }else{
            dali[x*M+y]=1;
            if(posoka==0){
                if(x!=N-1){
                    dfs(x+1,y,0,1);
                }
            }else{
                if(y!=M-1){
                    dfs(x,y+1,1,1);
                }
            }
        }
    }else{
        if(pechelq==1){
            if(posoka==0){
                if(y!=M-1){
                    dfs(x,y+1,1,1);
                }
            }else{
                if(x!=N-1){
                    dfs(x+1,y,0,1);
                }
            }
        }
    }
    return ;
}
/*/
int main(){
    freopen("note.in","r",stdin);
    freopen("note.out","w",stdout);
    int N,M;
    cin>>N>>M;
    int startx,starty;
    for(int i=0;i<N;i++){
        for(int j=0;j<M;j++){
            cin>>pole[i*M+j];
            dali[i*M+j]=-1;
            if(pole[i*M+j]=='L'){
                startx=i;
                starty=j;
            }
        }
    }
    for(int i=0;i<N;i++){
        for(int j=0;j<M;j++){
            if((pole[i*M+j]=='0' || pole[i*M+j]=='L') && ((i==0 && j==0) || (i==0 && pole[j-1]=='1') || (j==0 && pole[(i-1)*M]=='1'))){
                dali[i*M+j]=0;
                otlqwo[i*M+j]=1;
                otgore[i*M+j]=1;
            }else{
                if(pole[i*M+j]=='1'){
                    if(j==0){
                        if(i==0){
                            otlqwo[i*M+j]=0;
                            otgore[i*M+j]=0;
                        }else{
                            otlqwo[i*M+j]=otgore[(i-1)*M+j];
                            otgore[i*M+j]=0;
                        }
                    }else{
                        if(i==0){
                            otgore[i*M+j]=otlqwo[i*M+(j-1)];
                            otlqwo[i*M+j]=0;
                        }else{
                            otgore[i*M+j]=otlqwo[i*M+(j-1)];
                            otlqwo[i*M+j]=otgore[(i-1)*M+j];
                        }
                    }
                }else{
                    if(j==0){
                        if(otgore[(i-1)*M+j]==1){
                            dali[i*M+j]=1;
                            otgore[i*M+j]=1;
                            otlqwo[i*M+j]=0;
                        }else{
                            dali[i*M+j]=0;
                            otgore[i*M+j]=1;
                            otlqwo[i*M+j]=1;
                        }
                    }else{
                        if(i==0){
                            if(otlqwo[i*M+(j-1)]==1){
                                dali[i*M+j]=1;
                                otgore[i*M+j]=0;
                                otlqwo[i*M+j]=1;
                            }else{
                                dali[i*M+j]=0;
                                otgore[i*M+j]=1;
                                otlqwo[i*M+j]=1;
                            }
                        }else{
                            if(otlqwo[i*M+(j-1)]==0 && otgore[(i-1)*M+j]==0){
                                dali[i*M+j]=0;
                                otgore[i*M+j]=1;
                                otlqwo[i*M+j]=1;
                            }else{
                                dali[i*M+j]=1;
                                otlqwo[i*M+j]=otlqwo[i*M+(j-1)];
                                otgore[i*M+j]=otgore[(i-1)*M+j];
                            }
                        }
                    }
                }
            }
            //cout<<dali[i*M+j]<<" ";
        }
        //cout<<endl;
    }
    if(dali[startx*M+starty]==1){
        cout<<"L"<<endl;
    }else{
        cout<<"K"<<endl;
    }
    return 0;
}