#include <cstdio>#include <cstring>const int len = 32;const int maxn = 1024 + 10;char s[maxn];int buf[len][len], cnt;void draw(const char* s, int& p, int r, int c, int w){    char ch = s[p++];    if(ch == ‘p‘)    {        draw(s, p, r, c+w/2, w/2);        draw(s, p, r, c, w/2);        draw(s, p, r+w/2, c, w/2);        draw(s, p, r+w/2, c+w/2, w/2);    }    else if(ch == ‘f‘)    {        int i, j;        for(i = r; i < r+w; ++i)            for(j = c; j < c+w; ++j)                if(buf[i][j] == 0)                {                    buf[i][j] = 1;                    cnt++;                }    }}int main(void){    //freopen("in.txt", "r", stdin);    int T;    scanf("%d", &T);    while(T--)    {        memset(buf, 0, sizeof(0));        cnt = 0;        int i;        for(i = 0; i < 2; ++i)        {            scanf("%s", s);            int p = 0;            draw(s, p, 0, 0, len);        }    }    printf("There are %d black pixels.\n", cnt);    return 0;}