public static void cal() {
for (int n = 0; n <= 9; n++) {
int nY = 3 * n % 10; //求余
if (n == nY) {
for (int e = 0; e <= 9; e++) {
int eb = ((n * 3) / 10 + e * 3) % 10;
int jb = ((n * 3) / 10 + e * 3) / 10;
if (e == eb) {
for (int t = 0; t <= 9; t++) {
int tb = (jb + e + 2 * t) % 10;
int p = (jb + e + 2 * t) / 10;
int g = (p + t);
if ((tb == e) && (g == t)) {
System.out.println("n= " + n + " e = " + e
+ " t=" + t);
}
}
}
}