byte i;
byte j;

char b;
char c;
char sum;

String S_b;
String S_c;
String S_sum;

void print_All()
{
  Serial.println(); 
  Serial.print(" b= ");
  Serial.print(b);
  Serial.print(" c= ");
  Serial.print(c); 
  Serial.print(" sum= ");
  Serial.println(sum); 


  //Serial.println(); 
  Serial.print(" S_b= ");
  Serial.print(S_b);
  Serial.print(" S_c= ");
  Serial.print(S_c); 
  Serial.print(" S_sum= ");
  Serial.println(S_sum); 

  //Serial.println();
  //Serial.println();  
}

void setup() {
  // put your setup code here, to run once:


Serial.begin(9600);

i = 75;
j = 105;

b= i;
c= j;
sum= b + c;
print_All();

b= 'g';
c= 'j';
S_b = "g";
S_c = "j";


sum= b + c;
S_sum = S_b + S_c;
print_All();

sum= c + b;
S_sum = S_c + S_b;
print_All();




}

void loop() {
  // put your main code here, to run repeatedly:

}