ввод символов (character input)
Использование в приложениях (Application usage)
In format strings containing the '%' form of conversion
specifications, each argument in the argument list is used
exactly once.
For functions that allocate memory as if by malloc(), the
application should release such memory when it is no longer
required by a call to free(). For fwscanf(), this is memory
allocated via use of the 'm' assignment-allocation character.
