#include<stdio.h>
int main(void)
{
int n, i;
char a[10][4] = {
{
"XXX"}, {
"..X"},{
"XXX"}, {
"XXX"},{
"X.X"},{
"XXX"},{
"XXX"},{
"XXX"},{
"XXX"},{
"XXX"}};
char b[10][4] = {
{
"X.X"}, {
"..X"},{
"..X"}, {
"..X"},{
"X.X"},{
"X.."},{
<