Blockgame

#include<stdio.h>

int n,m;
char board[7][7];
int ans = 0;

bool isalpha(char c){
    return ('A' <= c && c <= 'Z');
}

void falling()
{
    int I = 0 , J = 0;
    while(I<n){
        while(J<m){
            bool check = false;
            while(isalpha(board[I][J]) && I + 1 < n && board[I+1][J] == '-'){
                board[I+1][J] = board[I][J];
                board[I][J] = '-';
                I++;
                check = true;
            }
            if(check){
                I = 0;
                J = 0;
            }
            else{
                J++;
            }
        }
        J = 0;
        I++;
    }
}

int cntcom(int I,int J,char key){
    if(I < 0 || I >= n || J < 0 || J >= m)return 0;
    if(board[I][J] != key)return 0;
    board[I][J] -= 'A';
    board[I][J] += 'a';
    return cntcom(I+1,J,key) + cntcom(I-1,J,key) + cntcom(I,J+1,key) + cntcom(I,J-1,key) + 1;
}

void refresh()
{
    for(int i = 0 ; i < n ; i ++){
        for(int j = 0 ; j < m ; j ++){
            if('a' <= board[i][j] && board[i][j] <= 'z'){
                board[i][j] = board[i][j] - 'a';
                board[i][j] = board[i][j] + 'A';
            }
        }
    }
}

void popping(int I,int J,char key){
    if(I < 0 || I >= n || J < 0 || J >= m)return;
    if(board[I][J] != key)return;
    board[I][J] = '-';
    ans += 5;
    popping(I+1,J,key);
    popping(I-1,J,key);
    popping(I,J+1,key);
    popping(I,J-1,key);
}

bool point(){
    int I = 0 , J = 0;
    while(I < n){
        while(J < m){
            if(isalpha(board[I][J])){
                if(cntcom(I,J,board[I][J]) > 1){
                    popping(I,J,board[I][J]);
                    return true;
                }else{
                    refresh();
                }
            }
            J++;
        }
        J = 0;
        I++;
    }
    return false;
}

void printboard()
{
    for(int i = 0 ; i < n ; i ++){
            for(int j = 0 ; j < m ; j ++){
                printf("%c ",board[i][j]);
            }
            printf("\n");
        }

}

int main()
{
    scanf("%d %d",&n,&m);
    for(int i = 0 ; i < n ; i ++){
        for(int j = 0 ; j < m ; j ++){
            scanf(" %c",&board[i][j]);
        }
    }
    int k;
    scanf("%d",&k);
    for(int q = 0 ; q < k ; q ++){
        int I,J;
        char d;
        scanf("%d %d %c",&I,&J,&d);

        if(d == 'L'){
            //invalid move
            if(J-1 < 0 || board[I][J-1] != '-' || !('A' <= board[I][J] && board[I][J] <= 'Z')){
                ans -= 5;
            }
            else{
                board[I][J-1] = board[I][J];
                board[I][J] = '-';
                falling();
                while(point()){
                    falling();
                }
            }
        }
        else if(d == 'R'){
            if(J+1 >= m || board[I][J+1] != '-' || !('A' <= board[I][J] && board[I][J] <= 'Z')){
                ans -= 5;
            }
            else{
                board[I][J+1] = board[I][J];
                board[I][J] = '-';
                falling();
                while(point()){
                    falling();
                }
            }
        }
        else{
            printf("Error\n");
            return 0;
        }
    }
    printf("%d\n",ans);
    printboard();
    return 0;
}