some-outputs.c

#include<stdio.h>
int x = 5;
int main(){
	{
		int x = 10, y = 20;
		{
			printf("x = %d, y = %d\n",x,y);
		
			{
				int y = 40;
				x++;
				y++;
		
				printf("x = %d, y = %d\n",x,y);
			}
			printf("x = %d, y = %d\n",x,y);
		}
		
	}
	printf("x = %d",x);
	return 0;
}