func_code_string: #include <bits/stdc++.h>   using namespace std;   const int buffer_size = 1e5 + 5;   char buf[buffer_size], *S, *T;   bool flag_EOF;   inline char read_char() {     if (S == T) T = (S = buf) + fread(buf, 1, buffer_size, stdin);     return S != T ? *(S++) : EOF;   }   inline int read_int() {     bool flag = false;     char c = read_char();     while (c <  0  || c >  9 ) {       if (c == EOF) {         flag_EOF = true;         return 0;       }       flag = (c ==  -  ? true : flag);       c = read_char();     }     int x = 0;     while (c >=  0  && c <=  9 ) {       x = x * 10 + (c ^ 48);       c = read_char();     }     return flag ? -x : x;   }   const int max_cnt = 1e3 + 5;   int l[max_cnt], p[max_cnt];   bool mark[max_cnt];   vector<int> a[2], b[2];   const int max_size = 5e5 + 5;   bitset<max_size> f[2];   bool dp[max_size];   int val[max_size];   inline int cmp1(int x, int y) { return abs(x) < abs(y); }   inline int cmp2(int x, int y) { return abs(x) > abs(y); }   int main() {     int t;     scanf( %d , &t);     while (t--) {       int h, v;       scanf( %d , &h);       for (int i = 1; i <= h; ++i) scanf( %d , l + i);       scanf( %d , &v);       for (int i = 1; i <= v; ++i) scanf( %d , p + i);       if (h != v) {         printf( No n );         continue;       }       int sum1 = 0, sum2 = 0;       for (int i = 1; i <= h; ++i) sum1 += l[i];       for (int i = 1; i <= v; ++i) sum2 += p[i];       if ((sum1 & 1) || (sum2 & 1)) {         printf( No n );         continue;       }       random_shuffle(l + 1, l + h + 1);       for (int i = 0; i <= sum1; ++i) f[0][i] = 0;       f[0][0] = 1;       int pos1 = -1;       for (int i = 1; i <= h; ++i) {         int x = (i & 1) ^ 1, y = i & 1;         f[y] = f[x] | (f[x] << l[i]);         if (f[y][sum1 >> 1]) {           pos1 = i;           break;         }       }       if (pos1 == -1) {         printf( No n );         continue;       }       random_shuffle(p + 1, p + v + 1);       for (int i = 0; i <= sum2; ++i) f[0][i] = 0;       f[0][0] = 1;       int pos2 = -1;       for (int i = 1; i <= v; ++i) {         int x = (i & 1) ^ 1, y = i & 1;         f[y] = f[x] | (f[x] << p[i]);         if (f[y][sum2 >> 1]) {           pos2 = i;           break;         }       }       if (pos2 == -1) {         printf( No n );         continue;       }       a[0].clear(), a[1].clear();       int tot1 = sum1 >> 1;       for (int i = 1; i <= h; ++i) mark[i] = false;       for (int i = pos1 + 1; i <= h; ++i) {         a[0].push_back(l[i]);         mark[i] = true;         tot1 -= l[i];       }       for (int i = 0; i <= tot1; ++i) dp[i] = false;       dp[0] = true;       for (int i = 1; i <= pos1; ++i)         for (int j = tot1 - l[i]; j >= 0; --j)           if (dp[j] && !dp[j + l[i]]) {             dp[j + l[i]] = true;             val[j + l[i]] = i;           }       int now = tot1;       while (now) {         a[0].push_back(l[val[now]]);         mark[val[now]] = true;         now -= l[val[now]];       }       int cnt1 = 0;       for (int i = 1; i <= h; ++i)         if (!mark[i]) {           a[1].push_back(l[i]);           ++cnt1;         }       b[0].clear(), b[1].clear();       int tot2 = sum2 >> 1;       for (int i = 1; i <= v; ++i) mark[i] = false;       for (int i = pos2 + 1; i <= v; ++i) {         b[0].push_back(p[i]);         mark[i] = true;         tot2 -= p[i];       }       for (int i = 0; i <= tot2; ++i) dp[i] = false;       dp[0] = true;       for (int i = 1; i <= pos2; ++i)         for (int j = tot2 - p[i]; j >= 0; --j)           if (dp[j] && !dp[j + p[i]]) {             dp[j + p[i]] = true;             val[j + p[i]] = i;           }       now = tot2;       while (now) {         b[0].push_back(p[val[now]]);         mark[val[now]] = true;         now -= p[val[now]];       }       int cnt2 = 0;       for (int i = 1; i <= v; ++i)         if (!mark[i]) {           b[1].push_back(p[i]);           ++cnt2;         }       printf( Yes n );       int x = 0, y = 0;       if (a[0].size() < a[1].size()) swap(a[0], a[1]);       if (b[0].size() > b[1].size()) swap(b[0], b[1]);       sort(a[1].begin(), a[1].end());       sort(b[1].begin(), b[1].end(), greater<int>());       while (a[1].size()) {         x += a[1].back();         printf( %d %d n , x, y);         y += b[1].back();         printf( %d %d n , x, y);         a[1].pop_back();         b[1].pop_back();       }       while (b[1].size()) {         x -= a[0].back();         printf( %d %d n , x, y);         y += b[1].back();         printf( %d %d n , x, y);         a[0].pop_back();         b[1].pop_back();       }       sort(a[0].begin(), a[0].end());       sort(b[0].begin(), b[0].end(), greater<int>());       while (b[0].size()) {         x -= a[0].back();         printf( %d %d n , x, y);         y -= b[0].back();         printf( %d %d n , x, y);         a[0].pop_back();         b[0].pop_back();       }     }     return 0;   }   