#include <stdio.h>

#define N 20

int main(int argc, const char *argv[])

{

	char a[N] = {'\0'};

	int i = 0;

	char ch = '\0';

	while((ch=getchar())!='\n')

	{

		a[i++] = ch;

	}

	int cnt = i;

	int num  = 0;

	for(i=0;i<cnt;i++)

	{

		num = num * 10 + (a[i] - '0');

	}

////////////////////////////////////

        printf("num = %d\n",num);

	return 0;

}