#include using namespace std; #define REP(i,n) for(int i=0;i<(int)(n);++i) #define REPR(i,n) for (int i=(int)(n)-1;i>=0;--i) #define FOR(i,c) for(__typeof((c).begin())i=(c).begin();i!=(c).end();++i) #define ALL(c) (c).begin(), (c).end() #define valid(y,x,h,w) (0<=y&&y pii; templatebool chmax(T &a, const T &b) { if (abool chmin(T &a, const T &b) { if (bbasic_ostream& operator<<(basic_ostream&os, const C& c){os<<'[';for(auto i=begin(c);i!=end(c);++i)os<<(i==begin(c)?"":" ")<<*i;return os<<']';} templateostream&operator<<(ostream &o,const pair&t){return o<<'('<void output(ostream&,const Tp&){} templatevoid output(ostream &o,const Tp&t){if(N)o<<',';o<(t);output(o,t);} templateostream&operator<<(ostream&o,const tuple&t){o<<'(';output<0,tuple,Ts...>(o,t);return o<<')';} templatevoid output(T t,char z=10){if(t<0)t=-t,putchar(45);int c[20]; int k=0;while(t)c[k++]=t%10,t/=10;for(k||(c[k++]=0);k;)putchar(c[--k]^48);putchar(z);} templatevoid outputs(T t){output(t);} templatevoid outputs(S a,T...t){output(a,32);outputs(t...);} templatevoid output(T *a,int n){REP(i,n)cout<void output(T *a,int n,int m){REP(i,n)output(a[i],m);} templatebool input(T &t){int n=1,c;for(t=0;!isdigit(c=getchar())&&~c&&c-45;); if(!~c)return 0;for(c-45&&(n=0,t=c^48);isdigit(c=getchar());)t=10*t+c-48;t=n?-t:t;return 1;} templatebool input(S&a,T&...t){input(a);return input(t...);} templatebool inputs(T *a, int n) { REP(i,n) if(!input(a[i])) return 0; return 1;} int a[300000]; int n; int solve() { int idx = n-1; int ans = 0; REP(i,n) { while(idx>i&&a[i]+a[idx]>=0) --idx; if (i>=idx) break; ++ans; idx--; } return ans; } int x[200000]; int y[200000]; int solve2() { memset(x,0,sizeof(x)); memset(y,0,sizeof(y)); int zero = 0; REP(i,n) { if (a[i] > 0) x[a[i]]++; else if (a[i] == 0) zero++; else if (a[i] < 0) y[-a[i]]++; } int ans = zero/2; REP(i,200000) { ans += min(x[i],y[i]); } return ans; } int main() { while(input(n)) { n *= 2; inputs(a,n); sort(a,a+n); int a1 = solve(); REP(i,n) a[i] = -a[i]; reverse(a,a+n); int a2 = solve(); int a3 = solve2(); cout << a1 << " " << a2 << " " << a3 << endl; } }