#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;
}