int a = 10;
float b = 3.14;
double c = 3.14;

printf("a is %dn", a);           // I'm sorry I forgot to type the parameters just now
printf("b is %fn", b);           //  Error
printf("c is %fn", c);           //  Error

a is 10
b is 0.000000

unsigned long long myStackRegion[MY_STACK_SIZE / sizeof(unsigned long long)];