diff --git a/heartrate.py b/heartrate.py
new file mode 100644
index 0000000..cae14c5
--- /dev/null
+++ b/heartrate.py
@@ -0,0 +1,6 @@
+n = int(input())
+for _ in range(n):
+    b, p = input().strip().split()
+    b = int(b)
+    p = float(p)
+    print(f"{60 * (b-1) / p:.4f} {60 * b / p:.4f} {60 * (b+1) / p:.4f}")