lab2

// Lab2
// first
class first{
    public static void main(String args[]){
        int a=55;
        double b=7.896;
        double sum=a+b;
        System.out.println(sum);
    }
}
// second
class second{
    public static void main(String args[]){
        long length=34567, breadth=76543;
        long area=length*breadth;
        System.out.println(area);
    }
}
// third
class third{
    public static void main(String args[]){
        char ch='A';
        for (int i=0; i<26; i++){
            int num=ch;
            System.out.println("The ASCII value of " + ch + " is " + num);
            ch++;
        }
        char ch2='a';
        for (int i=0; i<26; i++){
            int num2=ch2;
            System.out.println("The ASCII value of " + ch2 + " is " + num2);
            ch2++;
        }
    }
}
// fourth
class fourth{
    public static void main(String args[]){
        double d=3.5678;
        int num=(int)d;
        System.out.println(num);
    }
}
// fifth
class fifth{
    public static void main(String args[]){
        int num1='F', num2='Q';
        int difference=num2-num1-1;
        System.out.println(difference);
    }
}
// sixth
class sixth{
    public static void main(String args[]){
        int num=7;
        for (int i=1; i<=10; i++){
            System.out.println(num*i);
        }
    }
}
// seventh
class seventh{
    public static void main(String args[]){
        int num=1;
        for (int i=1; i<=5; i++){
            num*=7;
        }
        System.out.println(num);
    }
}
// eighth (a)
class eighthparta{
    public static void main(String args[]){
        for (int i=1; i<=6; i++){
            for (int j=1; j<=i; j++){
                System.out.print("*");
            }
            System.out.println();
        }
    }
}
// eighth (b)
class eighthpartb{
    public static void main(String args[]){
        for (int i=1; i<=5; i++){
            for (int j=1; j<=5-i; j++){
                System.out.print(" ");
            }
            for (int k=1; k<=i; k++){
                System.out.print("* ");
            }
            System.out.println();
        }
    }
}
// ninth
import java.util.*;
class ninth{
    public static void main(String args[]){
        int a[]=new int[5];
        a[0]=6;
        a[1]=9;
        a[2]=4;
        a[3]=2;
        a[4]=0;
        int sum=0;
        for (int i=0; i<5; i++){
            sum+=a[i];
        }
        System.out.println(sum);
    }
}
// ninth (modified)
import java.util.*;
class ninth{
    public static void main(String args[]){
        int a[]=new int[5];
        Scanner sc=new Scanner(System.in);
        for (int i=0; i<5; i++){
            a[i]=sc.nextInt();
        }
        int sum=0;
        for (int i=0; i<5; i++){
            sum+=a[i];
        }
        System.out.println(sum);
    }
}
// tenth
import java.util.*;
class tenth{
    public static void main(String args[]){
        int a[][]=new int[3][4], b[][]=new int[4][3];
        a[0][0]=6; a[0][1]=9; a[0][2]=6; a[0][3]=9;
        a[1][0]=4; a[1][1]=2; a[1][2]=0; a[1][3]=420;
        a[2][0]=69; a[2][1]=4; a[2][2]=2; a[2][3]=0;
        b[0][0]=4; b[0][1]=2; b[0][2]=0;
        b[1][0]=6; b[1][1]=9; b[1][2]=9;
        b[2][0]=4; b[2][1]=2; b[2][2]=0;
        b[3][0]=6; b[3][1]=9; b[3][2]=6;
        int c[][]=new int[3][3];
        for (int i=0; i<3; i++){
            for (int j=0; j<3; j++){
                c[i][j]=a[i][0]*b[0][j]+a[i][1]*b[1][j]+a[i][2]*b[2][j]+a[i][3]*b[3][j];
            }
        }
        for (int i=0; i<3; i++){
            for (int j=0; j<3; j++){
                System.out.print(c[i][j] + " ");
            }
            System.out.println();
        }
    }
}
// tenth (modified)
import java.util.*;
class tenth{
    public static void main(String args[]){
        int a[][]=new int[3][4], b[][]=new int[4][3];
        Scanner sc = new Scanner(System.in);
        for (int i=0; i<3; i++){
            for (int j=0; j<4; j++){
                a[i][j]=sc.nextInt();
            }
        }
        for (int i=0; i<4; i++){
            for (int j=0; j<3; j++){
                b[i][j]=sc.nextInt();
            }
        }
        int c[][]=new int[3][3];
        for (int i=0; i<3; i++){
            for (int j=0; j<3; j++){
                c[i][j]=a[i][0]*b[0][j]+a[i][1]*b[1][j]+a[i][2]*b[2][j]+a[i][3]*b[3][j];
            }
        }
        for (int i=0; i<3; i++){
            for (int j=0; j<3; j++){
                System.out.print(c[i][j] + " ");
            }
            System.out.println();
        }
    }
}