create dev channel

zeta/py/completed/16931.py

@@ -0,0 +1,11 @@
+N, M = map(int, input().split())
+sqs = [[0] + list(map(int, input().split())) + [0] for i in range(N)]
+sqs.insert(0, list(0 for i in range(M + 2)))
+sqs.append(list(0 for i in range(M + 2)))
+
+total = 2 * N * M
+for i in range(N + 1):
+    for j in range(M + 1):
+        total += abs(sqs[i][j] - sqs[i][j + 1])
+        total += abs(sqs[i][j] - sqs[i + 1][j])
+print(total)