#include <stdio.h>
 int x;
 void mondai1(int b){
 	x=b;
 }
 
 void mondai2(void){
 	static int c=10;
 	x=c;
 	c++;
 }
 
int mondai3(int d){
	x++;
	d++;
	return d;
}

int main(void){
	printf("x=%d\n",x);
	x=101;
	printf("x=%d\n",x);
	mondai1(102);
	printf("x=%d\n",x);
	mondai2();
	mondai2();
	mondai2();
	printf("x=%d\n",x);
	for(int i=103; i<104; i++){
		int x=i;
	printf("x=%d\n",x);
	x=mondai3(i);
	printf("x=%d\n",x);
	}
	
	printf("x=%d\n",x);
	return 0;
}