easy program in python
import time
def countdown(t):
while t:
mins, secs = divmod(t, 60)
timer = '{:02d}:{:02d}'.format(mins, secs)
print(timer, end="\r")
time.sleep(1)
t -= 1
print('Fire in the hole!!')
t = input("Enter the time in seconds: ")
countdown(int(t))