a147: Print it all FYI: https://yunlinsong.blogspot.com/2015/02/print-it-all.html

a147.cpp

#include <cmath>
#include <cstdio>

using namespace std;

int main(void){
	int num = 0;

    while(scanf("%d", &num) != EOF)
    {
		for(int i = 1; i < num; i++)
		{
			if( i % 7 == 0)
				continue;
			printf("%d ", i);
		}

		printf("\n");
    }

    return 0;
}