#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;
}
 

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