import time

reptime = int(raw_input("How many seconds per rep? "))
inc = int(raw_input("How many seconds per increment? "))
sets = int(raw_input("How many sets? "))
rest = int(raw_input("How many seconds rest between sets? "))

while sets >0:
    time.sleep(rest)
    print('Next rep...')
    print('\a\a')

    while reptime >0:
        time.sleep(inc)
        print(reptime)
        print('\a')
        reptime -=1
    sets -=1