Fix backslash issues

main.py

@@ -1,5 +1,5 @@
 import sys
-
+import platform
 
 def encode(m):
     m = bytearray(m, "ascii")
@@ -52,9 +52,12 @@ def encode(m):
 
 def decode(n):
 
-    fb = n[-7:-5]
-    sb = n[-2:]
-    msg = n[:-10]
+    if platform.system() == "Windows":
+        n = n.split("\\\\x")
+    else:
+        n = n.split("\\x")
+
+    msg = n[0]
     message = ""
 
     for ch in msg:
@@ -66,12 +69,12 @@ def decode(n):
 
         message += str(ch)
 
-    fb = bin(int(fb, 16))[2:]
+    fb = bin(int(n[1], 16))[2:]
 
     while len(fb) < 8:
         fb = "0" + fb
 
-    sb = bin(int(sb, 16))[2:]
+    sb = bin(int(n[2], 16))[2:]
 
     while len(sb) < 8:
         sb = "0" + sb
@@ -114,7 +117,7 @@ if __name__ == "__main__":
     if len(sys.argv) < 2:
         print("Proszę wprowadzić jedną z flag:\n")
         print("  -e, --encode\tZakoduj <wiadomość>")
-        print("  -d, --decode\tDekoduj <wiadomość_z_ramką>")
+        print("  -d, --decode\tDekoduj <wiadomość_z_ramką>\n")
         print("Przykład:")
         print("python main.py -e abc")
         print("python main.py -d abc\\\\x51\\\\x4a")