diff --git a/d12.py b/d12.py
index 8a80cf5..1146520 100644
--- a/d12.py
+++ b/d12.py
@@ -39,7 +39,7 @@ def solve(lines: list[str], repeat=1):
     all = []
     for (_, line) in enumerate(lines):
         springs, numbers = line.split()
-        numbers = tuple(lib.str_to_int_list(numbers))
+        numbers = tuple(lib.str_to_ints(numbers))
         ns = "?".join([springs for _ in range(repeat)])
         all.append((tuple(ns), numbers * repeat))
 
diff --git a/d19.py b/d19.py
index 52fa6bf..c9e27a6 100644
--- a/d19.py
+++ b/d19.py
@@ -140,10 +140,9 @@ def main():
     # 25:00
 
     print("Example  2:", solve(Input(EXAMPLE), True))
-    print("Correct  2:", 167409079868000)
+    assert solve(Input(EXAMPLE), True) == 167409079868000
     print("Solution 2:", solve(Input(DAY_INPUT), True))
     # 120:00
-    return
 
 if __name__ == "__main__":
     main()
diff --git a/d20.py b/d20.py
index 40f53b1..5d36e4c 100644
--- a/d20.py
+++ b/d20.py
@@ -103,6 +103,7 @@ def main():
     print("Example  2:", solve(Input(EXAMPLE2)))
     print("Solution 1:", solve(Input(DAY_INPUT)))
     print("Solution 2:", solve(Input(DAY_INPUT), True))
+    assert solve(Input(DAY_INPUT), True) == 244178746156661
 
 if __name__ == "__main__":
     main()
diff --git a/d9.py b/d9.py
index dadaebe..602f794 100644
--- a/d9.py
+++ b/d9.py
@@ -9,7 +9,7 @@ EXAMPLE = """
 def solve(lines: list[str]):
     res = 0
     for (i, line) in enumerate(lines):
-        digits = lib.str_to_int_list(line)
+        digits = lib.str_to_ints(line)
         last_digits = []
         while not all(d == 0 for d in digits):
             last_digits.append(digits[-1])
@@ -24,7 +24,7 @@ def solve(lines: list[str]):
 def solve2(lines: list[str]):
     res = 0
     for (i, line) in enumerate(lines):
-        digits = lib.str_to_int_list(line)
+        digits = lib.str_to_ints(line)
         first_digits = []
         while not all(d == 0 for d in digits):
             first_digits.append(digits[0])