这串代码哪里写错了，为什么我输入一个整数它直接就结束了

#include<stdio.h>
#include<math.h>

int main(void) {
    printf("What is the value of pi?\n");

    double answer = 3.14159;
    double response;
    scanf_s("%lf", &response);

    while (fabs(response - answer) > 0.0001) {
        printf("Try again!\n");
        scanf_s("%lf", &response);
    }

    printf("Close enough!\n");

    long num;
    long sum = 0;
    int status;

    printf("Please enter an integer to be summed (enter 'q' to quit):");
    status = scanf_s("%%ld", &num);

    while (status == 1) {
        sum += num;
        printf("Please enter next integer (enter 'q' to quit):");
        status = scanf_s("%%ld", &num);
    }

    printf("The sum of those integers is %ld.\n", sum);
    return 0;
}