for (int i = 0; i < 1000; i++) {
Console.WriteLine ("input num0");
string str0 = Console.ReadLine ();
int num0;
bool flag0 = int.TryParse (str0,out num0);
if (flag0) {
for (int j = 0; j < 1000; j++) {
Console.WriteLine ("input num1");
string str1 = Console.ReadLine ();
int num1;
bool flag1 = int.TryParse (str1, out num1);
if (flag1) {
for (int k = 0; k < 1000; k++) {
Console.WriteLine ("input num2");
string str2 = Console.ReadLine ();
int num2;
bool flag2 = int.TryParse (str2, out num2);
if (flag2) {
int max = num0 > num1 ? num0 : num1;
max = max > num2 ? max : num2;
Console.WriteLine ("max =" + max);
break;
} else {
Console.WriteLine ("num2 wrong,again input");
continue;
}
}break;
} else {
Console.WriteLine ("num1 wrong,again input");
continue;
}
}
} else {
Console.WriteLine ("num0 wrong,again input");
continue;
}
}
