ACM 10673 - Play with Floor and Ceil

#include <stdio.h>

int main()
{
    int i ,n;
    scanf("%d", &n);
    for (i = 0; i < n; i++)
    {
        int x, k;
        scanf("%d %d", &x, &k);

        printf("%d %d\n",k - (x % k) ,(x % k));
    }
    return 0;
}

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