题目描述 A common typing error is to place the hands on the keyboard one row to the right of the correct position. So $ Q $ is typed as $ W $ and $ J $ is typed as $ K $ and so on. You are to decode a message typed in this manner. 输入格式 Input consists of several lines of text. Each line may contain digits, spaces, upper case letters (except $ Q $, $ A $, $ Z $), or punctuation shown above [except back-quote ($ '$)]. Keys labelled with words [Tab, Backsp, Control, etc.] are not represented in the input. 输出格式 You are to replace each letter or punctuation symbol by the one immediately to its left on the $ QWERTY $ keyboard shown above. Spaces in the input should be echoed in the output. 输入样例 O S, GOMR YPFSU/ 输出样例 I AM FINE TODAY.