diff --git a/swea/21425.py b/swea/21425.py
new file mode 100644
index 0000000..b8f99a6
--- /dev/null
+++ b/swea/21425.py
@@ -0,0 +1,14 @@
+t=int(input())
+
+for _ in range(t):
+    count=0
+    x,y,n=map(int,input().split())
+
+    while(x<=n and y<=n):
+        count+=1
+        if(x<y):
+            x+=y
+        else:
+            y+=x
+
+    print(count)