이클립스 내장 콘솔의 행동이 이상합니다.

#include < cstdio >
using namespace std;
 
int main()
{
	int i, j, n;
	/*n : this program will print all the prime numbers between
	1 and n. */
	printf("Give me an integer: ");	
	scanf("%d", &n); // get the value of n.
	for(i = 2; i <= n; i++) { // i represent all the integers between 2 and n.
		for(j = 2; j < i; j++) {
			// This routine will check whether i is a prime number.
			// Simply, it tries to divide i by all possible integers.
			if(i % j == 0) {
				break;
			}
		}
		if(j == i) {
			// If the above routine finished without any halt, i is a prime number.
			// So, print i.
			printf("%d, ", i);
		}
	}
 
	printf("\n");
 
	return 0;
}

100 // 입력
Give me an integer: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79,
83, 89, 97, // 출력