C언어 구구단

#include <stdio.h>
 
int main(void)
{
    int n;
    
    for (int k = 1; k < 10; k++)
    {
        printf("-----------------%d 단입니다--------------- \n", k);
        for (int i = 1; i < 10; i++)
        {
            printf("%d X %d = %d \n", k, i, i*k);
        }
        
    }
    return 0;
}

-----------------1 단입니다---------------

1 X 1 = 1

1 X 2 = 2

1 X 3 = 3

1 X 4 = 4

1 X 5 = 5

1 X 6 = 6

1 X 7 = 7

1 X 8 = 8

1 X 9 = 9

-----------------2 단입니다---------------

2 X 1 = 2

2 X 2 = 4

2 X 3 = 6

2 X 4 = 8

2 X 5 = 10

2 X 6 = 12

2 X 7 = 14

2 X 8 = 16

2 X 9 = 18

-----------------3 단입니다---------------

3 X 1 = 3

3 X 2 = 6

3 X 3 = 9

3 X 4 = 12

3 X 5 = 15

3 X 6 = 18

3 X 7 = 21

3 X 8 = 24

3 X 9 = 27

-----------------4 단입니다---------------

4 X 1 = 4

4 X 2 = 8

4 X 3 = 12

4 X 4 = 16

4 X 5 = 20

4 X 6 = 24

4 X 7 = 28

4 X 8 = 32

4 X 9 = 36

-----------------5 단입니다---------------

5 X 1 = 5

5 X 2 = 10

5 X 3 = 15

5 X 4 = 20

5 X 5 = 25

5 X 6 = 30

5 X 7 = 35

5 X 8 = 40

5 X 9 = 45

-----------------6 단입니다---------------

6 X 1 = 6

6 X 2 = 12

6 X 3 = 18

6 X 4 = 24

6 X 5 = 30

6 X 6 = 36

6 X 7 = 42

6 X 8 = 48

6 X 9 = 54

-----------------7 단입니다---------------

7 X 1 = 7

7 X 2 = 14

7 X 3 = 21

7 X 4 = 28

7 X 5 = 35

7 X 6 = 42

7 X 7 = 49

7 X 8 = 56

7 X 9 = 63

-----------------8 단입니다---------------

8 X 1 = 8

8 X 2 = 16

8 X 3 = 24

8 X 4 = 32

8 X 5 = 40

8 X 6 = 48

8 X 7 = 56

8 X 8 = 64

8 X 9 = 72

-----------------9 단입니다---------------

9 X 1 = 9

9 X 2 = 18

9 X 3 = 27

9 X 4 = 36

9 X 5 = 45

9 X 6 = 54

9 X 7 = 63

9 X 8 = 72

9 X 9 = 81

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