题目描述
In this problem you will write a simple code generator for a 2D programming language derived from Brainfuck.
The code in this language is a rectangular grid of characters '.' and 'X'. The code is converted to a Brainfuck program as follows: the characters are read in the usual order (top to bottom, left to right), and each 'X' character is converted a Brainfuck instruction to be executed. The instruction is defined by the left, top and right neighbors of the 'X' character using the following conversion table:
You are given a string. Output a program in the described language which prints this string.
You can download the language interpreter used for judging here: https://assets.codeforces.com/rounds/952/puzzling-interpreter.cpp (use C++11 to compile the code). Note several implementation details:
- The first step of the language interpretation is conversion to a Brainfuck program, which is then executed.
- The code must be rectangular, with all lines of the same length. It can have at most 10,000 lines and 10,000 columns, and can have at most 500,000 'X' characters.
- The code has toroidal topology, i.e. the 'X' on the first line will have top neighbor in the last line.
- Brainfuck interpreter has 30000 memory cells which store integers from 0 to 255 with increment/decrement done modulo 256.
- Console input (, command) is allowed in Brainfuck code but has no effect when executed.
Input
The input consists of a single string of characters with ASCII codes between 33 ('!') and 122 ('z'), inclusive. The length of the string is between 1 and 10 characters, inclusive.
Output
Output a program in the described language which, when executed, will print the given message.
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分
样例输入
样例输出
提示
The example corresponds to the following Brainfuck program:
The triangular block decrements the first memory cell and sets the value of the second memory cell to 36 - the ASCII code of '$' character. The next line after the triangular block moves the memory pointer to the second memory cell, and the next three lines print the '$' character three times.