#_printf
#Description: The _printf function is a simpified version of the C function printf. It outputs different types of strings, integers and characters and recognizes each type. In this version, it takes into account the following specifiers: d, i, c, s and %.
#Example: For example, if the input command is: _printf("%s123%c546", NULL, 'c'); Then, it will produce the following output: (null)123c546