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 <cmath>
#include <vector>
#include <iostream>
using namespace std;
// ------ Classes ------ //
class Point {
public:
	long double px, py;
	Point() : px(0), py(0) {};
	Point(long double px_, long double py_) : px(px_), py(py_) {};
	friend bool operator==(const Point& p1, const Point& p2) { return p1.px == p2.px && p1.py == p2.py; }
	friend bool operator!=(const Point& p1, const Point& p2) { return p1.px != p2.px || p1.py != p2.py; }
	friend bool operator<(const Point& p1, const Point& p2) { return p1.px < p2.px ? true : (p1.px == p2.px && p1.py < p2.py); }
	friend bool operator>(const Point& p1, const Point& p2) { return p1.px > p2.px ? true : (p1.px == p2.px && p1.py > p2.py); }
	friend bool operator<=(const Point& p1, const Point& p2) { return !(p1 > p2); }
	friend bool operator>=(const Point& p1, const Point& p2) { return !(p1 < p2); }
	friend Point operator+(const Point& p1, const Point& p2) { return Point(p1.px + p2.px, p1.py + p2.py); }
	friend Point operator-(const Point& p1, const Point& p2) { return Point(p1.px - p2.px, p1.py - p2.py); }
	friend Point operator*(const Point& p1, long double d) { return Point(p1.px * d, p1.py * d); }
	friend Point operator*(long double d, const Point& p1) { return p1 * d; }
	friend Point operator/(const Point& p1, long double d) { return Point(p1.px / d, p1.py / d); }
	Point& operator+=(const Point& p1) { px += p1.px; py += p1.py; return *this; }
	Point& operator-=(const Point& p1) { px -= p1.px; py -= p1.py; return *this; }
	Point& operator*=(long double d) { px *= d; py *= d; return *this; }
	Point& operator/=(long double d) { px /= d; py /= d; return *this; }
};
class Segment {
public:
	Point p1, p2;
	Segment() : p1(Point()), p2(Point()) {};
	Segment(Point p1_, Point p2_) : p1(p1_), p2(p2_) {};
	Segment(long double p1x, long double p1y, long double p2x, long double p2y) : p1(Point(p1x, p1y)), p2(Point(p2x, p2y)) {};
	friend bool operator==(const Segment& s1, const Segment& s2) { return (s1.p1 == s2.p1 && s1.p2 == s2.p2) || (s1.p1 == s2.p2 && s1.p2 == s2.p1); }
	friend bool operator!=(const Segment& s1, const Segment& s2) { return !(s1 == s2); }
};

// ------ Functions ------ //
long double norm(const Point& a) { return a.px * a.px + a.py * a.py; }
long double abs(const Point& a) { return sqrtl(norm(a)); }
long double arg(const Point& a) { return atan2l(a.py, a.px); }
long double dot(const Point& a, const Point& b) { return a.px * b.px + a.py * b.py; }
long double crs(const Point& a, const Point& b) { return a.px * b.py - a.py * b.px; }
Point pol(long double r, long double d) { return Point(cosl(d) * r, sinl(d) * r); }
Point prj(const Segment& a, const Point& b) { return a.p1 + (a.p2 - a.p1) * dot(b - a.p1, a.p2 - a.p1) / norm(a.p2 - a.p1); }
Point rfl(const Segment& a, const Point& b) { return b + (prj(a, b) - b) * 2.0L; }
int ccw(Point p0, Point p1, Point p2) {
	Point a = p1 - p0, b = p2 - p0;
	if (crs(a, b) > 1e-10) return 1;
	if (crs(a, b) < -1e-10) return -1;
	if (dot(a, b) < -1e-10) return 2;
	if (norm(a) < norm(b)) return -2;
	return 0;
}
bool its(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);
}
bool its(Segment s1, Segment s2) {
	return its(s1.p1, s1.p2, s2.p1, s2.p2);
}
Point crp(Segment a, Segment b) {
	long double d1 = abs(crs(b.p2 - b.p1, a.p1 - b.p1));
	long double d2 = abs(crs(b.p2 - b.p1, a.p2 - b.p1));
	Point d = (a.p2 - a.p1);
	Point r = a.p1 + (a.p2 - a.p1) * d1 / (d1 + d2);
	return r;
}
long double area(vector<Point> v) {
	long double ret = 0.0L;
	for (int i = 0; i < v.size(); i++) ret += crs(v[i], v[(i + 1) % v.size()]);
	return ret / 2;
}
Segment s1, s2, s3;
int main() {
	while (cin >> s1.p1.px >> s1.p1.py >> s1.p2.px >> s1.p2.py >> s2.p1.px >> s2.p1.py >> s2.p2.px >> s2.p2.py >> s3.p1.px >> s3.p1.py >> s3.p2.px >> s3.p2.py) {
		if (!its(s1, s2) || !its(s2, s3) || !its(s3, s1)) puts("kyo");
		else {
			Point p1 = crp(s1, s2), p2 = crp(s2, s3), p3 = crp(s3, s1);
			long double a = labs(area({ p1, p2, p3 }));
			if (a >= 1900000.0L) puts("dai-kichi");
			else if (a >= 1000000.0L) puts("chu-kichi");
			else if (a >= 100000.0L) puts("kichi");
			else if (a >= 1e-10) puts("syo-kichi");
			else puts("kyo");
		}
	}
	return 0;
}