diff --git a/2021/d14/ex1/input b/2021/d14/ex1/input
new file mode 100644
index 0000000..bae5f8e
--- /dev/null
+++ b/2021/d14/ex1/input
@@ -0,0 +1,102 @@
+NNSOFOCNHBVVNOBSBHCB
+
+HN -> S
+FK -> N
+CH -> P
+VP -> P
+VV -> C
+PB -> H
+CP -> F
+KO -> P
+KN -> V
+NO -> K
+NF -> N
+CO -> P
+HO -> H
+VH -> V
+OV -> C
+VS -> F
+PK -> H
+OS -> S
+BF -> S
+SN -> P
+NK -> N
+SV -> O
+KB -> O
+ON -> O
+FN -> H
+FO -> N
+KV -> S
+CS -> C
+VO -> O
+SP -> O
+VK -> H
+KP -> S
+SK -> N
+NC -> B
+PN -> N
+HV -> O
+HS -> C
+CN -> N
+OO -> V
+FF -> B
+VC -> V
+HK -> K
+CC -> H
+BO -> H
+SC -> O
+HH -> C
+BV -> P
+OB -> O
+FC -> H
+PO -> C
+FV -> C
+BK -> F
+HB -> B
+NH -> P
+KF -> N
+BP -> H
+KK -> O
+OH -> K
+CB -> H
+CK -> C
+OK -> H
+NN -> F
+VF -> N
+SO -> K
+OP -> F
+NP -> B
+FS -> S
+SH -> O
+FP -> O
+SF -> V
+HF -> N
+KC -> K
+SB -> V
+FH -> N
+SS -> C
+BB -> C
+NV -> K
+OC -> S
+CV -> N
+HC -> P
+BC -> N
+OF -> K
+BH -> N
+NS -> K
+BN -> F
+PC -> C
+CF -> N
+HP -> F
+BS -> O
+PF -> S
+PV -> B
+KH -> K
+VN -> V
+NB -> N
+PH -> V
+KS -> B
+PP -> V
+PS -> C
+VB -> N
+FB -> N