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