#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <cmath>
#include <algorithm>
#define ll long long
using namespace std;
const int MOD1=15013;
const int MOD2=30323;
const int MOD3=15083;
const int LIM=10033;
char s[LIM];
int n,m;
int a1[103],a2[103],a3[103];
int ans[1000033],acnt=0;
int main()
{
scanf("%d%d",&n,&m);
ll a,b,c;int len;
bool flag;
for(int i=0;i<=n;++i)
{
flag=0;
scanf("%s",s);
if(s[0]=='-') {
flag=1;
s[0]='0';
}
len=strlen(s);
a=0;b=0;c=0;
for(int j=0;j<len;++j)
{
a=(a*10+s[j]-'0')%MOD1;
b=(b*10+s[j]-'0')%MOD2;
c=(c*10+s[j]-'0')%MOD3;
}
if(flag){
a1[i]=-a;
a2[i]=-b;
a3[i]=-c;
}else{
a1[i]=a;
a2[i]=b;
a3[i]=c;

}
}
ll mi1,mi2,mi3;
ll sum1,sum2,sum3;
for(int i=1;i<=m;++i)
{
mi1=1,mi2=1,mi3=1;
sum1=a1[0];
sum2=a2[0];
sum3=a3[0];
for(int j=1;j<=n;++j)
{
mi1=mi1*i%MOD1;
mi2=mi2*i%MOD2;
mi3=mi3*i%MOD3;
sum1+=a1[j]*mi1%MOD1;
sum2+=a2[j]*mi2%MOD2;
sum3+=a3[j]*mi3%MOD3;
}
sum1=(sum1+MOD1)%MOD1;
sum2=(sum2+MOD2)%MOD2;
sum3=(sum3+MOD3)%MOD3;
if(sum1==0&&sum2==0&&sum3==0){
ans[++acnt]=i;
}
}
printf("%d\n",acnt);
for(int i=1;i<=acnt;++i)
{
printf("%d\n",ans[i]);
}
return 0;
}

#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <cmath>
#include <algorithm>
#define ll long long
using namespace std;
const int MOD1=15013;
const int MOD2=30323;
const int MOD3=15083;
const int LIM=10033;
char s[LIM];
int n,m;
int a1[103],a2[103],a3[103];
int ans[1000033],acnt=0;
int main()
{
    scanf("%d%d",&n,&m);
    ll a,b,c;int len;
    bool flag;
    for(int i=0;i<=n;++i)
    {
        flag=0;
        scanf("%s",s);
        if(s[0]=='-') {
            flag=1;
            s[0]='0';
        }
        len=strlen(s);
        a=0;b=0;c=0;
        for(int j=0;j<len;++j)
        {
            a=(a*10+s[j]-'0')%MOD1;
            b=(b*10+s[j]-'0')%MOD2;
            c=(c*10+s[j]-'0')%MOD3;
        }
        if(flag){
            a1[i]=-a;
            a2[i]=-b;
            a3[i]=-c;
        }else{
            a1[i]=a;
            a2[i]=b;
            a3[i]=c;            
        }
    }
    ll mi1,mi2,mi3;
    ll sum1,sum2,sum3;
    for(int i=1;i<=m;++i)
    {
        mi1=1,mi2=1,mi3=1;
        sum1=a1[0];
        sum2=a2[0];
        sum3=a3[0];
        for(int j=1;j<=n;++j)
        {
            mi1=mi1*i%MOD1;
            mi2=mi2*i%MOD2;
            mi3=mi3*i%MOD3;
            sum1+=a1[j]*mi1%MOD1;
            sum2+=a2[j]*mi2%MOD2;
            sum3+=a3[j]*mi3%MOD3;
        }
        sum1=(sum1+MOD1)%MOD1;
        sum2=(sum2+MOD2)%MOD2;
        sum3=(sum3+MOD3)%MOD3;
        if(sum1==0&&sum2==0&&sum3==0){
            ans[++acnt]=i;
        }
    }
    printf("%d\n",acnt);
    for(int i=1;i<=acnt;++i)
    {
        printf("%d\n",ans[i]);
    }
    return 0;
}