#include <cstdio>
#include <cstdlib>
#include <ctime>

int sz[52] = { 0,
3, 7, 8, 9, 12,
1012, 1099, 2345, 3337, 5000
};

int main()
{
    int st, ed, r = 1, c = 3;
    char in[110], out[110];
    scanf("%d%d", &st, &ed);
    srand(time(NULL));
    for(int i = st ; i <= ed ; i++ )
    {
        sprintf(in, ".%d.in", i);
        freopen(in, "w", stdout);
        printf("%d\n", sz[i]);
        for(int j = 0 ; j < sz[i] ; j++ )
            if( rand() < 25000 ) printf("%d ", rand()%1000 + 1);
            else printf("%d ", (rand()%1000 + 1)*(-1));
    }
}