Standard input is empty

string(1523) "{"id":9,"isbn":"9789778535419","title_ar":"\u0623\u064a \u062d\u0631\u0641 \u0623\u0643\u0644 \u0627\u0644\u0648\u062d\u0634\u061f","title_en":"\u0623\u064a \u062d\u0631\u0641 \u0623\u0643\u0644 \u0627\u0644\u0648\u062d\u0634\u061f","description_ar":"\n\u0647\u0645 \u0646\u0645 \u064a\u0645 \u0646\u0645 \u0646\u0645 ... \u062d\u0631\u0641 \u062c\u0645\u064a\u0644 \u0645\u0627 \u0623\u0644\u0630 \u0627\u0644\u0637\u0639\u0627\u0645!\n\u0647\u0630\u0627 \u0645\u0627 \u064a\u0642\u0648\u0644\u0647 \u0627\u0644\u0648\u062d\u0634 \u0627\u0644\u0638\u0631\u064a\u0641 \u0643\u0644\u0645\u0627 \u0623\u0643\u0644 \u062d\u0631\u0641\u0627 \u0645\u0646 \u0627\u0644\u062d\u0631\u0648\u0641 \u0627\u0644\u0642\u0635\u0629. \u0648\u0644\u0643\u0646 \u0643\u064a\u0641 \u0633\u0646\u0639\u0631\u0641 \u0623\u064a \u062d\u0631\u0641 \u0623\u0643\u0644 \u0627\u0644\u0648\u062d\u0634 \u062d\u062a\u0649 \u0646\u0633\u062a\u0637\u064a\u0639 \u0623\u0646 \u0646\u0643\u0645\u0644 \u064a\u0627 \u062a\u0631\u0649\u061f\n","description_en":null,"year":null,"price":null,"currency_id":null,"number_of_papers":45,"title_fr":"le monstre mangeur de lettres","description_fr":"\nyam yam .... Que c'est bon , cette lettre est tr\u00e8s d\u00e9licieuse!\nC'est ce que dit le dr\u00f4le de monstre chaque fois qu'il mange une lettre de chaque mot d'une histoire . Mais comment saurons-nous quelle lettre \na mang\u00e9 le  le monstre pour pouvoir  compl\u00e9ter l'histoire?\n","series_fr":null,"book_reviews_count":2,"user_favorites_count":4}"
string(8) "No error"