dice

 1 #include <iostream>
 2 #include <cstring>
 3 #include <cmath>
 4 #include <cstdio>
 5 #include <algorithm>
 6 #include <queue>
 7 #include <vector>
 8 #include <map>
 9 #include <complex>
10 
11 #define inf 0x3f3f3f3f
12 #define MAXN 131072
13 
14 using namespace std;
15 
16 typedef long long ll;
17 
18 ll n, m, ans;
19 ll s, x, z, y, q, h;
20 void soll() {
21     int t = s;
22     s = y, y = x, x = z, z = t;
23     ans += s;
24 }
25 void solr() {
26     int t = s;
27     s = z, z = x, x = y, y = t;
28     ans += s;
29 }
30 void sold() {
31     int t = s;
32     s = h, h = x, x = q, q = t;
33     ans += s;
34 }
35 int main() { 
36     ans = s = 1, x = 6, z = 4, y = 3, q = 2, h = 5;
37     scanf("%lld %lld",&n,&m);
38     for(int i = 1; i <= n; i ++){
39         ans += ((m - 1) / 4) * 14;
40         if(i & 1)
41             for(int j = 1; j <= (m - 1) % 4; j ++) solr();
42         else
43             for(int j = 1; j <= (m - 1) % 4; j ++) soll();
44         if(i != n) sold();
45     }
46     printf("%lld\n", ans);
47     return 0;
48 }