#include <stdio.h>

int main(int argc, char const *argv[])
{
	/* 1 */
    for (int i = 0; i < 10; ++i)
        printf("* ");
    printf("\n\n");
 
    /* 2 */
    for (int i = 0; i < 10; ++i)
        printf("* ");
    printf("\n");
   
    for (int i = 0; i < 5; ++i)
        printf("* ");
    printf("\n");
   
    for (int i = 0; i < 15; ++i)
        printf("* ");
    printf("\n\n");
 
    /* 3 */
    for (int i = 0; i < 10; ++i){
        for (int j = 0; j < 10; ++j)
            printf("* ");
        printf("\n");
    }
    printf("\n");
 
    /* 4 */
    for (int i = 0; i < 10; ++i){
        for (int j = 0; j < 5; ++j)
            printf("* ");
        printf("\n");
    }  
    printf("\n");
 
    /* 5 */
    for (int i = 0; i < 5; ++i){
        for (int j = 0; j < 20; ++j)
            printf("* ");
        printf("\n");
    }
    printf("\n");
   
    /* 6 */
    for (int i = 0; i < 10; ++i){
        for (int j = 0; j < 10; ++j)
            printf("%d ", j);
        printf("\n");
    }
    printf("\n");
 
    /* 7 */
    for (int i = 0; i < 10; ++i){
        for (int j = 0; j < 10; ++j)
            printf("%d ", i);
        printf("\n");
    }
    printf("\n");

	/* 8 */
	for (int i = 0; i < 10; ++i){
		for (int j = 0; j < i+1; ++j)
			printf("%d ", j);
		printf("\n");
	}
	printf("\n");
	
	/* 9 */
	for (int i = 0; i < 10; ++i){
		for (int j = 0; j < i; ++j)
			printf("  ");
		for (int j = 0; j < 10-i; ++j)
			printf("%d ", j);
		printf("\n");
	}
	printf("\n");

	/* 10 */
	for (int i = 1; i < 10; ++i){
		for (int j = 1; j < 10; ++j){
			if (i*j < 10)
				printf(" ");
			printf("%d ", i * j);
		}
		printf("\n");
	}
	printf("\n");

	/* 11 */
	for (int i = 0; i < 10; ++i) {
		for (int j = 0; j < 10-i; ++j)
			printf("  ");
		for (int j = 1; j < i+1; ++j)
			printf("%d ", j);
		for (int j = i-1; j > 0; --j)
			printf("%d ", j);
		printf("\n");
	}
	printf("\n");

	/* 12 */
	for (int i = 0; i < 10; ++i){
		for (int j = 0; j < 10-i; ++j)
			printf("  ");
		for (int j = 1; j < i+1; ++j)
			printf("%d ", j);
		for (int j = i-1; j > 0; --j)
			printf("%d ", j);
		printf("\n");
	}

	for (int i = 0; i < 10; ++i){
		for (int j = 0; j < i+2; ++j)
			printf("  ");
		for (int j = 1; j < 9-i; ++j)
			printf("%d ", j);
		printf("\n");
	}
	printf("\n");

	/* 13 */
	for (int i = 0; i < 10; ++i){
		for (int j = 0; j < 10-i; ++j)
			printf("  ");
		for (int j = 1; j < i+1; ++j)
			printf("%d ", j);
		for (int j = i-1; j > 0; --j)
			printf("%d ", j);
		printf("\n");
	}

	for (int i = 0; i < 10; ++i){
		for (int j = 0; j < i+2; ++j)
			printf("  ");
		for (int j = 1; j < 9-i; ++j)
			printf("%d ", j);
		for (int j = 7-i; j > 0; --j)
			printf("%d ", j);
		printf("\n");
	}

	return 0;
}