{"raw_statement":[{"iden":"statement","content":"用递归的方法求 $1+2+3+$ …… $+N$ 的值。"},{"iden":"input","content":"输入 $N$。"},{"iden":"output","content":"输出和。"},{"iden":"note","content":"$N\\le 200$"}],"translated_statement":null,"sample_group":[["5","15"]],"show_order":[],"formal_statement":null,"simple_statement":null,"has_page_source":false}