need python day 1, worrying

d01/run.py

@@ -0,0 +1,21 @@
+import sys, os
+from collections import Counter
+
+L1 = []
+L2 = []
+L = sys.stdin.readlines()
+for l in L:
+    [a,b] = l[:-1].split("   ")
+    L1.append(int(a))
+    L2.append(int(b))
+
+S = 0
+for a, b in zip(sorted(L1), sorted(L2)):
+    S += abs(b-a)
+print("1:", S)
+
+C2 = Counter(L2)
+S=0
+for n in L1:
+   S += n * C2[n]
+print("2:", S)