Display format "dynamic" in c - c

Question

Usually I develop in PHP. But for a project I have to develop a small program in C (using Visual Studio on Windows).
I need to display values ​​on the screen (in the final version I write to a file).
Among the 3 values ​​there is a value (the C value in my example) that I need to see displayed as a character or as a number.
Example :
valueA = 65 | valueB = 10 | valueC = 80 => I want display A - 10 - P
valueA = 65 | valueB = 78 | valueC = 80 => I want display A - N - P
So I created this code and it works (I used static variables for a test code)
// Initialization
unsigned char valueA = 65;
unsigned char valueB = 10;
unsigned char valueC = 80;
unsigned char formatDisplay[25] = { 0 };
unsigned char formatA = 'c';
unsigned char formatB = 'c';
unsigned char formatC = 'c';
// If Character NOT Human Readable
if (valueB < 33) formatB = 'd';
// Determination Format Display
sprintf(formatDisplay, "\n%%%c - %%%c - %%%c", formatA, formatB, formatC);
// Display Values
printf(formatDisplay, valueA, valueB, valueC);
But isn't there any simpler...?
I develop in C and not in C++
In the above question and example I only have 3 values ​​including 1 value with a variant display but I can later have more values ​​and more variant display.

Answer 1

Using all the comments and answers I got, I answer my question, if it can help someone one day :).
With an example with 4 values ​​including 2 with variable display (B and D in the case below).
// Initialization
unsigned char valueA = 65;
unsigned char valueB = 10;
unsigned char valueC = 80;
unsigned char valueD = 85;
unsigned char formatDisplay[30] = { 0 };
unsigned char formatB = 'c';
unsigned char formatD = 'c';
// If Character NOT Human Readable
if (!isgraph(valueB)) formatB = 'd';
if (!isgraph(valueD)) formatD = 'd';
// Determination Format Display
sprintf(formatDisplay, "\n%%c - %%%c - %%c - %%%c", formatB, formatD);
// Display Values
printf(formatDisplay, valueA, valueB, valueC, valueD);