1 #include <iostream> 2 #include <cstdio> 3 #include <cstring> 4 #include <cstdlib> 5 #include <cmath> 6 #include <algorithm> 7 #include <string> 8 #include <queue> 9 #include <stack>10 #include <vector>11 #include <map>12 #include <set>13 #include <functional>14 #include <time.h>15 16 using namespace std;17 18 const int INF = 1<<30;19 const int MAXN = (int) 1e6+5;20 21 int a[MAXN];22 23 inline int myAbs(int x) {24     return x>0 ? x : -x;25 }26 27 int main() {28     #ifdef Phantom0129         freopen("HNU12876.in", "r", stdin);30     #endif //Phantom0131 32     memset(a, 0, sizeof(a));33     for (int i = 1; i < MAXN; i++)34         for (int j = i<<1; j < MAXN; j += i)35             a[j]+=i;36     for (int i = 1; i < MAXN; i++)37         a[i] = myAbs(a[i]-i);38 39     int l, r, k;40     int T = 1;41     while (scanf("%d%d%d", &l, &r, &k)!=EOF) {42         if (l==r&&r==k&&k==0) break;43         printf("Test %d: ", T++);44         int ans = 0;45         for (int i = l; i <= r; i++)46             if (a[i]<=k)47                 ans++;48         printf("%d\n", ans);49     }50 51     return 0;52 }