#include <stdio.h>
static int internalVar = 20;
void printInternalVar()
{
printf("internalVar: %d\n", internalVar);
}
void modifyInernalVar(int value)
{
internalVar = value;
}
int main()
{
printf("main_internalVar: %d\n", internalVar);
internalVar = 300;
printf("main_internalVar: %d\n", internalVar);
return 0;
}