// modification of the original code
#include <stdio.h>

int main()
{
    int n;
    printf("Enter the maximum number ");
    scanf("%d", &n);
    printf("Prime numbers are: ");
    for (int i = 2; i <= n; i++) {
        int fact = 0;
        for (int j = 2; j < i; j++)
            if (i%j == 0)
                fact++;
        if (fact == 0)
            printf("%d ", i);
    }
    printf("\n");
    return 0;
}