execpastebindoron

import __builtin__
from math import *
import math
run = True
sin(90)
while run:
    a=raw_input("enter a command press done to quit ")
    if(a=="done"):
        run=False
    elif('=' in a or 'print' in a ):
       exec(a)
    elif(a in dir(math)):
        print
        print eval(a)