diff --git "a/Retos/Reto #39 - TRIPLES PITAG\303\223RICOS [Media]/c++/AlexCoffing.cpp" "b/Retos/Reto #39 - TRIPLES PITAG\303\223RICOS [Media]/c++/AlexCoffing.cpp"
new file mode 100644
index 0000000000..3a53056f83
--- /dev/null
+++ "b/Retos/Reto #39 - TRIPLES PITAG\303\223RICOS [Media]/c++/AlexCoffing.cpp"	
@@ -0,0 +1,65 @@
+#include <bits/stdc++.h>
+
+#define lli long long int
+#define endL '\n'
+
+using namespace std;
+
+void terna(lli);
+bool mcd(lli,lli);
+
+int main() {
+    lli n;
+    cin>>n;
+    terna(n);
+    return 0;
+    }
+
+bool mcd(lli p, lli q) {
+    lli resp;
+    do {
+        resp = q;
+        q = p%q;
+        p = resp;
+        }
+    while(q!=0);
+    if(resp==1)
+        return 1;
+    else
+        return 0;
+    }
+
+void terna(lli maxi) {
+    lli p(2),q(1),a((p*p)-(q*q)),b(2*p*q),c((a*a)+(b*b)),i,j;
+    c = sqrt(c);
+    while(c<=maxi) {
+        i=1;
+        while(c*i<=maxi) {
+        if(a<b) {
+            cout<<"("<<a*i<<", ";
+            cout<<b*i<<", ";
+            }
+        else {
+            cout<<"("<<b*i<<", ";
+            cout<<a*i<<", ";
+            }
+        cout<<c*i<<")"<<endL;
+        i++;
+        }
+        j=0;
+        do {
+            q++;
+            if(p==q) {
+                p++;
+                q=1;
+                j++;
+                }
+            while((mcd(p,q)==0) || ((p%2==1 && q%2==1) || (p%2==0 && q%2==0)))
+                q++;
+            a=(p*p)-(q*q);
+            b=2*p*q;
+            c= sqrt((a*a)+(b*b));
+            }
+        while(c>maxi && j<=1);
+        }
+    }