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- #include <iostream>
- #include <stdio.h>
- using namespace std;
- int main() {
- long long m, n;
- long long i,j;
- scanf("%lld %lld", &m, &n);
- for (i = m; i <= n; i++) {
- if (i < 100) {
- for (j = 2; j <= i; j++) {
- if (i%j == 0 && i == j) {
- printf("%lld\n", i);
- }
- else if (i%j == 0) {
- break;
- }
- }
- }
- else {
- if (i % 2 == 0) {
- continue;
- }
- for (j = 3; j*j <= i; j+=2) {
- if (i%j == 0) {
- break;
- }
- else if (i < (j+2)*(j+2) || i==j*j) {
- printf("%lld\n", i);
- }
- }
- }
- }
- return 0;
- }
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