class Main {
public static void main(String[] args) {
int N = 4;
int M = 3;
int A = 3;
int B = 2;
int count = 0;
int[][] NxM = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 }, { 10, 11, 12 } };
for (int y = 0; y < A; y++) {
for (int x = 0; x < B; x++) {
count = count + NxM[y][x];
}
}
for (int y = 0; y < A; y++) {
for (int x = 1; x <= B; x++) {
count = count + NxM[y][x];
}
}
for (int y = 1; y <= A; y++) {
for (int x = 0; x < B; x++) {
count = count + NxM[y][x];
}
}
for (int y = 1; y <= A; y++) {
for (int x = 1; x <= B; x++) {
count = count + NxM[y][x];
}
}
System.out.println("Da total is " + count + ".");
}
}