Write a toy scanf function. Its specification are as follows:

int toy_scanf( char format_str[], int *arg-1, char *arg-2 )

The function has exactly three arguments with the constant string <format_str> being the format specifier. 

This string has the following form: "<string-1>%d<string-2>%c<string-3>".

The function expects the input to be in the following form:
<string-1><a number><string-2><a character><string-3>

If the input is of correct form, the function reads the input number and character and stores them in *arg_1 and *arg-2 respectively, and returns 1. Otherwise it returns 0.

Note: Only getchar() funcion can be used inside their definition. You should not use scanf! 

For example, for the call
toy_scanf("A number = %d\nA character = %c", &n, &c)
the first two inputs are in correct form and the next two are in the wrong form:
----------------------------------------------------------------------
A number = 30
A character = c
---------------------------------------------------------------------
A number = 744
A character = Z
-------------------------------------------------------------------------
744
Z
-----------------------------------------------------------------------
A number = 744 A character = Z
-----------------------------------------------------------------------