{"raw_statement":[{"iden":"problem statement","content":"In the Kingdom of AtCoder, there is a standardized test of competitive programming proficiency.\nAn examinee will get a score out of $100$ and obtain a **rank** according to the score, as follows:\n\n*   Novice, for a score not less than $0$ but less than $40$;\n*   Intermediate, for a score not less than $40$ but less than $70$;\n*   Advanced, for a score not less than $70$ but less than $90$;\n*   Expert, for a score not less than $90$.\n\nTakahashi took this test and got $X$ points.\nFind the minimum number of extra points needed to go up one rank higher. If, however, his rank was Expert, print `expert`, as there is no higher rank than that."},{"iden":"constraints","content":"*   $0 \\leq X \\leq 100$\n*   $X$ is an integer."},{"iden":"input","content":"Input is given from Standard Input in the following format:\n\n$X$"},{"iden":"sample input 1","content":"56"},{"iden":"sample output 1","content":"14\n\nHe got $56$ points and was certified as Intermediate. In order to reach the next rank of Advanced, he needs at least $14$ more points."},{"iden":"sample input 2","content":"32"},{"iden":"sample output 2","content":"8"},{"iden":"sample input 3","content":"0"},{"iden":"sample output 3","content":"40"},{"iden":"sample input 4","content":"100"},{"iden":"sample output 4","content":"expert\n\nHe got full points and was certified as Expert. There is no rank higher than that, so print `expert`."}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}