diff --git a/es3_20250317.asm b/es3_20250317.asm
new file mode 100644
index 0000000..e4a151b
--- /dev/null
+++ b/es3_20250317.asm
@@ -0,0 +1,29 @@
+        ORG 300h
+main:
+        LD HL, 0100h
+        LD B, 20h
+        LD C, 00h
+        LD D, 00h
+
+Controlla:
+        LD A, (HL)
+        AND 01h
+        JP Z, Pari
+
+Dispari:
+        INC D
+        JP Continua
+
+Pari:
+        INC C
+
+Continua:
+        INC HL
+        DEC B
+        JP NZ, Controlla
+        LD A, C
+        LD (0200h), A
+        LD A, D
+        LD (0201h), A
+
+        HALT