diff --git a/22/19.py b/22/19.py
new file mode 100644
index 0000000..a3915d7
--- /dev/null
+++ b/22/19.py
@@ -0,0 +1,24 @@
+s, t = 11, 27
+c = []
+n = []
+arr = [1] * (s + 1)
+
+for k in range(len(c) + 1):
+  s__ = s + 1 if k == 0 else c[k - 1] + 1
+  s_ = s__ - 1
+  t__ = c[k] + 1 if k < len(c) else t + 1
+  t_ = t__ - 1
+  for i in range(s__, t__):
+    e = 0
+    if i - 1 >= s_ and not i - 1 in n:
+      e += arr[i - 1]
+    if (i % 100) // 10 > 0 and i - 10 >= s_ and not i - 10 in n:
+      e += arr[i - 10]
+    arr.append(e)
+  back = arr[t_]
+  arr = [0] * (t_ + 1)
+  arr[t_] = back
+
+print(arr[t])
+
+# 8
diff --git a/22/49.py b/22/49.py
new file mode 100644
index 0000000..7810fdf
--- /dev/null
+++ b/22/49.py
@@ -0,0 +1,24 @@
+s, t = 2, 11
+c = []
+n = []
+arr = [1] * (s + 1)
+
+for k in range(len(c) + 1):
+  s__ = s + 1 if k == 0 else c[k - 1] + 1
+  s_ = s__ - 1
+  t__ = c[k] + 1 if k < len(c) else t + 1
+  t_ = t__ - 1
+  for i in range(s__, t__):
+    e = 0
+    if i - 1 >= s_ and not i - 1 in n:
+      e += arr[i - 1]
+    if i % 2 == 1 and (i + 1) // 2 >= s_ and not (i + 1) // 2 in n:
+      e += arr[(i+1) // 2]
+    arr.append(e)
+  back = arr[t_]
+  arr = [0] * (t_ + 1)
+  arr[t_] = back
+
+print(arr[t])
+
+# 14
diff --git a/22/50.py b/22/50.py
new file mode 100644
index 0000000..512cb77
--- /dev/null
+++ b/22/50.py
@@ -0,0 +1,25 @@
+s, t = 3, 20
+c = []
+n = []
+arr = [1] * (s + 1)
+
+for k in range(len(c) + 1):
+  s__ = s + 1 if k == 0 else c[k - 1] + 1
+  s_ = s__ - 1
+  t__ = c[k] + 1 if k < len(c) else t + 1
+  t_ = t__ - 1
+  for i in range(s__, t__):
+    e = 0
+    if i - 1 >= s_ and not i - 1 in n:
+      e += arr[i - 1]
+    if i != t // 2:
+      if i % 2 == 0 and i // 2 >= s_ and not i // 2 in n:
+        e += arr[i // 2]
+    arr.append(e)
+  back = arr[t_]
+  arr = [0] * (t_ + 1)
+  arr[t_] = back
+
+print(arr[t])
+
+# 16
diff --git a/22/67.py b/22/67.py
new file mode 100644
index 0000000..1909d60
--- /dev/null
+++ b/22/67.py
@@ -0,0 +1,24 @@
+s, t = 5, 25
+c = [15]
+n = [12]
+arr = [1] * (s + 1)
+
+for k in range(len(c) + 1):
+  s__ = s + 1 if k == 0 else c[k - 1] + 1
+  s_ = s__ - 1
+  t__ = c[k] + 1 if k < len(c) else t + 1
+  t_ = t__ - 1
+  for i in range(s__, t__):
+    e = 0
+    if i - 1 >= s_ and not i - 1 in n:
+      e += arr[i - 1]
+    if i - 3 >= s_ and not i - 3 in n:
+      e += arr[i - 3]
+    arr.append(e)
+  back = arr[t_]
+  arr = [0] * (t_ + 1)
+  arr[t_] = back
+
+print(arr[t])
+
+# 280
diff --git a/22/75.py b/22/75.py
new file mode 100644
index 0000000..9665627
--- /dev/null
+++ b/22/75.py
@@ -0,0 +1,26 @@
+s, t = 3, 13
+c = []
+n = [8]
+arr = [1] * (s + 1)
+
+for k in range(len(c) + 1):
+  s__ = s + 1 if k == 0 else c[k - 1] + 1
+  s_ = s__ - 1
+  t__ = c[k] + 1 if k < len(c) else t + 1
+  t_ = t__ - 1
+  for i in range(s__, t__):
+    e = 0
+    if i - 1 >= s_ and not i - 1 in n:
+      e += arr[i - 1]
+    if i - 2 >= s_ and not i - 2 in n:
+      e += arr[i - 2]
+    if i % 2 == 0 and i // 2 >= s_ and not i // 2 in n:
+      e += arr[i // 2]
+    arr.append(e)
+  back = arr[t_]
+  arr = [0] * (t_ + 1)
+  arr[t_] = back
+
+print(arr[t])
+
+# 40
diff --git a/22/82.py b/22/82.py
new file mode 100644
index 0000000..2208c6a
--- /dev/null
+++ b/22/82.py
@@ -0,0 +1,24 @@
+s, t = 1, 31
+c = []
+n = [25]
+arr = [1] * (s + 1)
+
+for k in range(len(c) + 1):
+  s__ = s + 1 if k == 0 else c[k - 1] + 1
+  s_ = s__ - 1
+  t__ = c[k] + 1 if k < len(c) else t + 1
+  t_ = t__ - 1
+  for i in range(s__, t__):
+    e = 0
+    if i - 1 >= s_ and not i - 1 in n:
+      e += arr[i - 1]
+    if (i - 1) % 2 == 0 and (i - 1) // 2 >= s_ and not (i - 1) // 2 in n:
+      e += arr[(i - 1) // 2]
+    arr.append(e)
+  back = arr[t_]
+  arr = [0] * (t_ + 1)
+  arr[t_] = back
+
+print(arr[t])
+
+# 44
diff --git a/22/90.py b/22/90.py
new file mode 100644
index 0000000..7905378
--- /dev/null
+++ b/22/90.py
@@ -0,0 +1,26 @@
+s, t = 2, 15
+c = [4, 11]
+n = []
+arr = [1] * (s + 1)
+
+for k in range(len(c) + 1):
+  s__ = s + 1 if k == 0 else c[k - 1] + 1
+  s_ = s__ - 1
+  t__ = c[k] + 1 if k < len(c) else t + 1
+  t_ = t__ - 1
+  for i in range(s__, t__):
+    e = 0
+    if i - 1 >= s_ and not i - 1 in n:
+      e += arr[i - 1]
+    if i - 2 >= s_ and not i - 2 in n:
+      e += arr[i - 2]
+    if i % 3 == 0 and i // 3 >= s_ and not i // 3 in n:
+      e += arr[i // 3]
+    arr.append(e)
+  back = arr[t_]
+  arr = [0] * (t_ + 1)
+  arr[t_] = back
+
+print(arr[t])
+
+# 210
diff --git a/22/util.py b/22/util.py
new file mode 100644
index 0000000..6f3db74
--- /dev/null
+++ b/22/util.py
@@ -0,0 +1,26 @@
+s, t = 3, 20
+c = [9]
+n = [15]
+arr = [1] * (s + 1)
+
+for k in range(len(c) + 1):
+  s__ = s + 1 if k == 0 else c[k-1] + 1
+  s_ = s__ - 1
+  t__ = c[k] + 1 if k < len(c) else t + 1
+  t_ = t__ - 1
+  for i in range(s__, t__):
+    e = 0
+    if i - 1 >= s_ and not i - 1 in n:
+      e += arr[i-1]
+    if i - 2 >= s_ and not i - 2 in n:
+      e += arr[i-2]
+    # if i % 2 == 0 and i // 2 >= s_ and not i // 2 in n:
+    #   e += arr[i // 2]
+    arr.append(e)
+  back = arr[t_]
+  arr = [0] * (t_ + 1)
+  arr[t_] = back
+
+print(arr[t])
+
+# 280