#include <cstdio>
#include <conio.h>
#include <cstring>
#include <math.h>

int main()
{
	printf("Podaj wartosc(2): ");
	char line[256];
	int i;

	if (fgets(line, sizeof(line), stdin))
	{
		if (sscanf_s(line, "%d", &i))
		{
			printf("Podana wartosc to: %s", line);
		}
	}

	printf("\nDlugosc: %d", strlen(line) - 1);

	int result = 0;

	int l = strlen(line) - 2;

	for (int i = 0; i < strlen(line) - 1; i++)
	{
		if (line[l] == '1')
		{
			result += i == 0 ? 1 : pow(2, i);
		}
		l--;
	}

	printf("\nDziesietnie: %d", result);

	_getch();
	return 0;
}