#include<bits/stdc++.h>
using namespace std;
inline int read(){
    int ret=0,flg=0;
    char c=getchar();
    while(c<'0'||c>'9')flg|=c=='-',c=getchar();
    while(c>='0'&&c<='9')ret=(ret<<3)+(ret<<1)+c-'0',c=getchar();
    return flg?-ret:ret;
}
inline void write(int x,bool flg){
    char a[21];
    if(!x)putchar('0');
    if(x<0)putchar('-'),x=-x;
    int cnt=0;
    while(x){
        a[++cnt]=x%10+'0';
        x/=10;
    }
    while(cnt)putchar(a[cnt--]);
    putchar(flg?'\n':' ');
    return ;
}
#define maxn 200010
int n,px[maxn],pn[maxn],sx[maxn],sn[maxn];
int l[maxn],r[maxn];
vector<int> v[maxn];
int main(){
    n=read();
    px[0]=1e9;
    for(int i=1;i<=n;i++){
        int k=read();
        l[i]=1e9,r[i]=0;
        for(int j=1;j<=k;j++){
            int x=read();
            l[i]=min(l[i],x);
            r[i]=max(r[i],x);
            v[i].push_back(x);
        }
        px[i]=min(px[i-1],r[i]);
        pn[i]=max(pn[i-1],l[i]);
    }
    sx[n+1]=1e9,sn[n+1]=0;
    if(pn[n]>px[n]){
        write(n,1);
        return 0;
    }
    for(int i=n;i;i--){
        int L=max(pn[i-1],sn[i+1]),R=min(px[i-1],sx[i+1]);
        for(auto t:v[i]){
            if(t<=R&&t>=L){
                write(2*n-1,1);
                return 0;
            }
        }
        sx[i]=min(sx[i+1],r[i]);
        sn[i]=max(sn[i+1],l[i]);
    }
    write(2*n,1);
    return 0;
}