diff --git a/brechtje/3/3-1.py b/brechtje/3/3-1.py
new file mode 100644
index 0000000..e99ad7e
--- /dev/null
+++ b/brechtje/3/3-1.py
@@ -0,0 +1,19 @@
+input = open("input.txt").read().splitlines()
+
+def find_biggest_num(line, start, is_first_num):
+    num = -1
+    max_num = 9
+    while True:
+        num = line.find(str(max_num), start)
+        if num == -1 or (is_first_num and num == len(line) - 1):
+            max_num -= 1
+        else:
+            return num
+answer = 0
+
+for line in input:
+    first_num = find_biggest_num(line, 0, True)
+    second_num = find_biggest_num(line, first_num + 1, False)
+    answer += int(line[first_num] + line[second_num])
+
+print(answer)
\ No newline at end of file