import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main {
    static int[] w = new int[100010];
    static int[] v = new int[100010];
    static int[][] dp = new int[110][100010];
    static int k;

    static int chmin(int a, int b) {
        if (a > b) {
            a = b;
            return a;
        }
        return a;
    }

    static int chmax(int a, int b) {
        if (a < b) {
            a = b;
            return a;
        }
        return a;
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        char[] in = sc.next().toCharArray();
        in[3] = '8';
        System.out.println(new String(in));
    }
} import java.util.ArrayList; ArrayList java.util import java.util.List; List java.util import java.util.Scanner; Scanner java.util public class Main {
    static int[] w = new int[100010];
    static int[] v = new int[100010];
    static int[][] dp = new int[110][100010];
    static int k;

    static int chmin(int a, int b) {
        if (a > b) {
            a = b;
            return a;
        }
        return a;
    }

    static int chmax(int a, int b) {
        if (a < b) {
            a = b;
            return a;
        }
        return a;
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        char[] in = sc.next().toCharArray();
        in[3] = '8';
        System.out.println(new String(in));
    }
} Main static int[] w = new int[100010]; w new int[100010] 100010 static int[] v = new int[100010]; v new int[100010] 100010 static int[][] dp = new int[110][100010]; dp new int[110][100010] 110 100010 static int k; k static int chmin(int a, int b) {
        if (a > b) {
            a = b;
            return a;
        }
        return a;
    } chmin {
        if (a > b) {
            a = b;
            return a;
        }
        return a;
    } if (a > b) {
            a = b;
            return a;
        } a > b a b {
            a = b;
            return a;
        } a = b a b return a; a return a; a int a a int b b static int chmax(int a, int b) {
        if (a < b) {
            a = b;
            return a;
        }
        return a;
    } chmax {
        if (a < b) {
            a = b;
            return a;
        }
        return a;
    } if (a < b) {
            a = b;
            return a;
        } a < b a b {
            a = b;
            return a;
        } a = b a b return a; a return a; a int a a int b b public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        char[] in = sc.next().toCharArray();
        in[3] = '8';
        System.out.println(new String(in));
    } main {
        Scanner sc = new Scanner(System.in);
        char[] in = sc.next().toCharArray();
        in[3] = '8';
        System.out.println(new String(in));
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) char[] in = sc.next().toCharArray(); in sc.next().toCharArray() sc.next().toCharArray sc.next() sc.next sc in[3] = '8' in[3] in 3 '8' System.out.println(new String(in)) System.out.println System.out System System.out new String(in) String[] args args public class Main {
    static int[] w = new int[100010];
    static int[] v = new int[100010];
    static int[][] dp = new int[110][100010];
    static int k;

    static int chmin(int a, int b) {
        if (a > b) {
            a = b;
            return a;
        }
        return a;
    }

    static int chmax(int a, int b) {
        if (a < b) {
            a = b;
            return a;
        }
        return a;
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        char[] in = sc.next().toCharArray();
        in[3] = '8';
        System.out.println(new String(in));
    }
} public class Main {
    static int[] w = new int[100010];
    static int[] v = new int[100010];
    static int[][] dp = new int[110][100010];
    static int k;

    static int chmin(int a, int b) {
        if (a > b) {
            a = b;
            return a;
        }
        return a;
    }

    static int chmax(int a, int b) {
        if (a < b) {
            a = b;
            return a;
        }
        return a;
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        char[] in = sc.next().toCharArray();
        in[3] = '8';
        System.out.println(new String(in));
    }
} Main
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main {
    static int[] w = new int[100010];
    static int[] v = new int[100010];
    static int[][] dp = new int[110][100010];
    static int k;

    static int chmin(int a, int b) {
        if (a > b) {
            a = b;
            return a;
        }
        return a;
    }

    static int chmax(int a, int b) {
        if (a < b) {
            a = b;
            return a;
        }
        return a;
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        char[] in = sc.next().toCharArray();
        in[3] = '8';
        System.out.println(new String(in));
    }
}
