public static void readCharMatrix(InputReader in, char[][] matrix) {
for (int i = 0; i < matrix.length; i++) {
String row = in.next();
for (int j = 0; j < matrix[i].length; j++) {
matrix[i][j] = row.charAt(j);
}
}
}
public static void readCharMatrix(InputReader in, char[][] matrix) {
for (int i = 0; i < matrix.length; i++) {
String row = in.next();
for (int j = 0; j < matrix[i].length; j++) {
matrix[i][j] = row.charAt(j);
}
}
}