Postdef legoString(input1, input2, input3):

def legoString(input1, input2, input3): wall = input1 n = input2 blocks = input3 if not wall or not blocks: return [-1] word_len = len(blocks[0]) if len(wall) < word_len: return [-1] from collections import Counter block_count = Counter(blocks) result = [] for i in range(len(wall) - word_len + 1): for used in range(2, n+1): length = used * word_len if i + length > len(wall): break substring = wall[i:i+length] words = [substring[j:j+word_len] for j in range(0, length, word_len)] count_words = Counter(words) if all(count_words[w] <= block_count[w] for w in count_words) and sum(count_words.values()) == used: result.append(i) return sorted(set(result)) if result else [-1] //Lego strings✅✅ VIRTUSA✅