/**
* @brief Codeforces Round #282 (Div. 2) a
* @file a.cpp
* @author mianma
* @created 2014/12/15 9:55
* @edited 2014/12/15 9:55
* @type math
* @note
*/
#include <fstream>
#include <iostream>
#include <cstring>
using namespace std;
#define max(a, b) ((a) > (b) ? (a) : (b))
#define min(a, b) ((a) > (b) ? (b) : (a))
#define abs(a) ((a) > 0 ? (a) : (0 - (a)))
#define CLR(vec) memset(vec, 0, sizeof(vec))
#ifdef DEBUG
ifstream in;
ofstream out;
#define CIN in
#define COUT out
#else
#define CIN cin
#define COUT cout
#endif
const int table[] = {1, 6, 1, 2, 2, 3, 1, 4, 0, 1};
string str;
int main(void){
ios_base::sync_with_stdio(0);
#ifdef DEBUG
CIN.open("./in", ios::in);
COUT.open("./out", ios::out);
#endif
CIN >> str;
COUT << (table[str[0] - ‘0‘] + 1)* (table[str[1] - ‘0‘]+ 1) << "\n";
return 0;
}
Codeforces Round #282 (Div. 2) a
原文：http://my.oschina.net/u/572632/blog/356103