#include <stdio.h>
#include <Windows.h>

void Task1() {
	printf("Task1() START\n");
	int n, m;

	m = 1;
	do {
		n = 1;
		do {
			printf(" %d", m * 10 + n);
			n++;
		} while (n <= 4);

		printf("\n");
		m++;
	} while (m <= 5);

	printf("Task1() FINISH\n");
}

void Task2() {
	printf("Task2() START\n");
	int n = 1, m = 1, i = 10;
    do {
		do {
			printf(" %2d", n * m);
			m += 1;
		} while (m <= i);
        
		printf("\n");

		m = 1;
		n += 1;
	} while (n <= 10);

	printf("Task2() FINISH\n");
}

void main() {
	SetConsoleCP(1251);
	SetConsoleOutputCP(1251);
	int n;
	do {
		printf("\n");
		printf("\n");
		printf("Выберите нужную вам операцию:\n");
		printf("11:(m * 10 + n)\n");
		printf("12:Таблица Пифагора\n");
		printf("\n");
		printf("0:Выйти из программы\n");
		scanf_s("%d", &n);
		switch (n) {
		case 11:
			Task1();
			break;
		case 12:
			Task2();
			break;
		}
	} while (n != 0);
}