diff --git "a/week1/1977\354\231\204\354\240\204\354\240\234\352\263\261\354\210\230/solution.py" "b/week1/1977\354\231\204\354\240\204\354\240\234\352\263\261\354\210\230/solution.py"
index e69de29..d7b7f93 100644
--- "a/week1/1977\354\231\204\354\240\204\354\240\234\352\263\261\354\210\230/solution.py"
+++ "b/week1/1977\354\231\204\354\240\204\354\240\234\352\263\261\354\210\230/solution.py"
@@ -0,0 +1,16 @@
+from math import sqrt
+
+M, N = int(input()), int(input())
+
+checklist = list(range(M, N+1))
+answer = []
+
+for num in checklist:
+    if sqrt(num).is_integer():
+        answer.append(num)
+
+if(len(answer)==0):
+    print(-1)
+else:
+    print(sum(answer))
+    print(answer[0])
\ No newline at end of file