#include <stdio.h>

int main(void) {
	
	int i;
	int a[10];
	a[0] = 3;
	
	printf("1項目：%d\n",a[0]);
	
	for(i = 1;i < 10;i ++){
		a[i] = a[i-1] + 3;
		printf("%d項目：%d\n",i+1,a[i]);
	}
	
	return 0;
}