import vk_api
import datetime 
import time
x = 1000
vk = vk_api.VkApi(token='тут токен')
while True:
    nice = str(x)+str(-7)= str(x-7)
    x - x-7
    vk.method('status.set', {'text': nice})
    print(nice)
    time.sleep(5)
    if (x<0):
        x - 1000