Запиши все трехзначные числа без плвторения одинаковых цифр 4,5,6,7

456,457,465,467,475,476,546,547,564,567,574,576,645,647,654,657,674,675,745,746,754,756,764,765

400,401,402,403,405,406,407,408,409,410,412,413,415,416,417,418,419,420,421,423,425,426,427,428,429,430,431,432,435,436,437,438,439,450,451,452,453,456,457,458,459,460,461,462... и т.д. Без чисел 464,466,474,477,484,488,494,499 ; 505,511,515. В общем принцип ясен.