import time

def countdown(seconds):
    print(f"Hold your grip for {seconds} seconds!")
    for remaining in range(seconds, 0, -1):
        mins, secs = divmod(remaining, 60)
        print(f"{mins:02}:{secs:02}", end="\r")  # overwrite the same line
        time.sleep(1)
    print("\nTime’s up! Relax your grip.")

countdown(60)