Go: package main

import (
	"bufio"
		"os"
	"strings"
	"strconv"
	"fmt"
	"math"
)

var scanner = bufio.NewScanner(os.Stdin)

type Point struct {
	x, y float64
}
func main() {
	for scanner.Scan() {
		buf1 := strings.Split(scanner.Text(), " ")
		line1 := make([]float64, len(buf1))
		for i := range line1 {
			line1[i], _ = strconv.ParseFloat(buf1[i], 64)
		}
		if line1[0] == 0 && line1[1] == 0 &&
			line1[2] == 0 && line1[3] == 0 {
				break
		}
		scanner.Scan()
		buf2 := strings.Split(scanner.Text(), " ")
		line2 := make([]float64, len(buf2))
		for i := range line2 {
			line2[i], _ = strconv.ParseFloat(buf2[i], 64)
		}
		scanner.Scan()
		buf3 := strings.Split(scanner.Text(), " ")
		line3 := make([]float64, len(buf3))
		for i := range line2 {
			line3[i], _ = strconv.ParseFloat(buf3[i], 64)
		}
		if !intersect(line1[0], line1[1], line1[2], line1[3], line2[0], line2[1], line2[2], line2[3]) ||
			!intersect(line2[0], line2[1], line2[2], line2[3], line3[0], line3[1], line3[2], line3[3]) ||
			!intersect(line3[0], line3[1], line3[2], line3[3], line1[0], line1[1], line1[2], line1[3]) {
				fmt.Println("kyo")
		} else {
			p1 := intersection(line1[0], line1[1], line1[2], line1[3], line2[0], line2[1], line2[2], line2[3])
			p2 := intersection(line2[0], line2[1], line2[2], line2[3], line3[0], line3[1], line3[2], line3[3])
			p3 := intersection(line3[0], line3[1], line3[2], line3[3], line1[0], line1[1], line1[2], line1[3])
			area := math.Abs((p2.x - p1.x) * (p3.y - p1.y) - (p2.y - p1.y) * (p3.x - p1.x))/2
			if area < 0.00000001 {
				fmt.Println("kyo")
			} else if 1899999.99999999 < area {
				fmt.Println("dai-kichi")
			} else if 999999.99999999 < area {
				fmt.Println("chu-kichi")
			} else if 99999.99999999 < area {
				fmt.Println("kichi")
			} else {
				fmt.Println("syo-kichi")
			}
		}
	}
}

func cross(x1, y1, x2, y2 float64) int {
	z :=  x1 * y2 - y1 * x2
	if 0 < z {
		return 1
	} else if z < 0 {
		return -1
	} else {
		return 0
	}
}

func intersect(x1, y1, x2, y2, x3, y3, x4, y4 float64) bool {
	if 0 <= cross(x2-x1, y2-y1, x3-x1, y3-y1) *
		cross(x2-x1, y2-y1, x4-x1, y4-y1) {
			return false
	}
	if 0 <= cross(x4-x3, y4-y3, x1-x3, y1-y3) *
		cross(x4-x3, y4-y3, x2-x3, y2-y3) {
			return false
	}
	return true
}

func intersection(x1, y1, x2, y2, x3, y3, x4, y4 float64) Point {
	if x3 == x4 {
		x1, x3 = x3, x1
		y1, y3 = y3, y1
		x2, x4 = x4, x2
		y2, y4 = y4, y2
	}
	ret := Point{}
	if x1 == x2 {
		// y軸に平行な直線の場合
		c := (y4 - y3) / (x4 - x3)
		d := y3 - c * x3
		x := x1
		y := c * x + d
		ret.x, ret.y = x, y
	} else {
		a := (y2 - y1) / (x2 - x1)
		b := y1 - a * x1
		c := (y4 - y3) / (x4 - x3)
		d := y3 - c * x3
		x := (d - b) / (a - c)
		y := a * x + b
		ret.x, ret.y = x, y
	}
	return ret
}

C++: #include<iostream>
#include<cmath>
#include<algorithm>
#include<vector>
#include<cstdio>
#define EPS (1e-10)
#define COUNTER_CLOCKWISE 1
#define CLOCKWISE -1
#define ONLINE_BACK 2
#define ONLINE_FRONT -2
#define ON_SEGMENT 0
using namespace std;


class Point
{
public:
  double x,y;

  Point(double x =0,double y=0):x(x),y(y){}

  Point operator + (Point p){return Point(x+p.x,y+p.y); }
  Point operator - (Point p){return Point(x-p.x,y-p.y); }
  Point operator * (Point p){return Point(x*p.x,y*p.y); }

  bool operator < (const Point &p) const {
    return x != p.x ? x < p.x : y < p.y;
  }  

  bool operator == (const Point &p) const {
    return fabs(x-p.x) < EPS && fabs(y-p.y) < EPS;
  }

};

double norm(Point a)
{
  return a.x*a.x+a.y*a.y;
}

double dot(Point a,Point b)
{
  return a.x*b.x + a.y*b.y;
}

double cross(Point a,Point b)
{
  return a.x*b.y - a.y*b.x;
}

int ccw(Point p0,Point p1,Point p2)
{
  Point a = p1-p0;
  Point b = p2-p0;
  if(cross(a,b) > EPS)return COUNTER_CLOCKWISE;
  if(cross(a,b) < -EPS)return CLOCKWISE;
  if(dot(a,b) < -EPS)return ONLINE_BACK;
  if(norm(a) < norm(b))return ONLINE_FRONT;
  return ON_SEGMENT;
}

bool isIntersect(Point p1,Point p2,Point p3,Point p4)
{
  return (ccw(p1,p2,p3) * ccw(p1,p2,p4) <= 0 &&
          ccw(p3,p4,p1) * ccw(p3,p4,p2) <= 0 );
}

Point getCrossPoint(Point a1,Point a2,Point b1,Point b2)
{
  if(!isIntersect(a1,a2,b1,b2))
    {
      return Point(-9993999,-9993999);
    }
  Point base = b2 - b1;
  double d1 = abs(cross(base,a1-b1));
  double d2 = abs(cross(base,a2-b1));
  double t = d1/(d1+d2);
  return a1 + (a2 - a1)*t;
}

double getArea(Point p1,Point p2,Point p3)
{
  double a,b,c;
  a = sqrt(pow(p1.x-p2.x,2)+pow(p1.y-p2.y,2));
  b = sqrt(pow(p2.x-p3.x,2)+pow(p2.y-p3.y,2));
  c = sqrt(pow(p1.x-p3.x,2)+pow(p1.y-p3.y,2));
  double s = (a+b+c)/2.0;
  return sqrt(s*(s-a)*(s-b)*(s-c));
}

int main()
{
  int x1,y1,x2,y2;
  while(cin >> x1 >> y1 >> x2 >> y2,(x1|y1|x2|y2))
    {
      Point a(x1,y1);
      Point b(x2,y2);
      cin >> x1 >> y1 >> x2 >> y2;
      Point c(x1,y1);
      Point d(x2,y2);
      cin >> x1 >> y1 >> x2 >> y2;
      Point e(x1,y1);
      Point f(x2,y2);
      Point c1,c2,c3;
      c1 = getCrossPoint(a,b,c,d);
      c2 = getCrossPoint(c,d,e,f);
      c3 = getCrossPoint(e,f,a,b);


      if((c1 == c2 && c2 == c3) || !isIntersect(a,b,c,d) || !isIntersect(c,d,e,f) || !isIntersect(e,f,a,b))
	{
	  cout << "kyo" << endl;
	  continue;
	}
     
      double area = getArea(c1,c2,c3);

      if(0.0 <= area && area < 100000)
	cout << "syo-kichi" << endl;
      else if(100000 <= area && area < 1000000)
	cout << "kichi" << endl;
      else if(1000000 <= area && area < 1900000)
	cout << "chu-kichi" << endl;
      else if(1900000 <= area)
	cout << "dai-kichi" << endl; 

    }
  return 0;
}

C++: #include<iostream>
#include<cstdio>
#include<algorithm>
#include<climits>
#include<string>
#include<vector>
#include<list>
#include<map>
#include<set>
#include<cmath>
#include<queue>
#include<cstring>
#include<stack>
using namespace std;
#define EPS 1e-10

struct Point{
    double x,y;
    Point(){}
    Point(double _x,double _y){
        x=_x; y=_y;
    }
    Point operator +(const Point p)const{
        return Point(x+p.x,y+p.y);
    }
    Point operator -(const Point p)const{
        return Point(x-p.x,y-p.y);
    }
	Point operator *(const double d)const{
		return Point(x*d,y*d);
	}
};

struct Line{
    Point a,b;
    Line(){}
    Line(Point _a,Point _b){
        a=_a; b=_b;
    }
};

double dot(Point p,Point q){
    return p.x*q.x+p.y*q.y;
}

double cross(Point p,Point q){
    return p.x*q.y-q.x*p.y;
}

int ccw(Point a,Point b,Point c){
    if(cross(b-a,c-b)>0) return +1;
    if(cross(b-a,c-b)<0) return -1;
    return 0;
}

bool intersect_ss(Line l,Line m) {
    return ccw(l.a,m.a,l.b)*ccw(l.a,m.b,l.b)<=0 && ccw(m.a,l.a,m.b)*ccw(m.a,l.b,m.b)<=0;
}

bool crosspoint_ll(Line l,Line m,Point &p){
    Point a1,a2,b1,b2;
	a1 = l.b-l.a; a2 = m.b-m.a;
	b1 = m.a-l.a; b2 = m.b-l.a;
	double s1,s2;
	s1 = abs(cross(a1,b1)/2); s2 = abs(cross(a1,b2)/2);
	if(s1<EPS && s2<EPS) return false;
	p = Point(m.a.x+a2.x*s1/(s1+s2),m.a.y+a2.y*s1/(s1+s2));
	return true;
}

bool crosspoint_ss(Line l,Line m,Point &p){
    if(intersect_ss(l,m)==false) return false;
	return crosspoint_ll(l,m,p);
}

int main(){
	Line l[3];
	while(true){
		for(int i=0;i<3;i++){
			cin>>l[i].a.x>>l[i].a.y>>l[i].b.x>>l[i].b.y;
			if(l[i].a.x==0 && l[i].a.y==0 && l[i].b.x==0 && l[i].b.y==0) return 0;
		}
		Point p[3];
		bool kyo = false;
		for(int i=0;i<3;i++){
			if(crosspoint_ss(l[i],l[(i+1)%3],p[i])==false) kyo = true;
		}
		if(kyo==true){
			puts("kyo"); continue;
		}
		double s = abs(cross(p[1]-p[0],p[2]-p[0])/2);
		//printf("\t%lf\n",s);
		if(s<EPS) puts("kyo");
		else if(s<100000.0) puts("syo-kichi");
		else if(s<1000000.0) puts("kichi");
		else if(s<1900000.0) puts("chu-kichi");
		else puts("dai-kichi");
	}
    return 0;
}