#include <stdio.h>

static int foo = 10; // This variable lives in global scope

int main(int argc, const char *argv[])
{
	int bar = 55; // This is in the scope of the main function
	
	for(int i= 0; i < 10;)
		i += 1; // i is local to this scope
	for(int i = 10; i >= 0;)
		i -= 1; // so we can reuse i again

	// you can open a block to introduce a scope
	{
		int foo = 5; // this will overshadow the global foo
		printf("foo: %d\n", foo);
	}
	printf("foo: %d\n", foo);
	
}