import Bintro
import B1
import B2
import B3
import B4
import B5
import B6
import B7
import B8
import B9
import B10
import Binfo

def run(Ex):
    if Ex == "1":
        B1.a()
        
    elif Ex == "2":
        B2.b()

    elif Ex == "3":
        B3.c()

    elif Ex == "4":
        B4.d()

    elif Ex == "5":
        B5.e()

    elif Ex == "6":
        B6.f()

    elif Ex == "7":
        B7.g()
        
    elif Ex == "8":
        B8.h()

    elif Ex == "9":
        B9.i()

    elif Ex == "10":
        B10.j()

    elif Ex == "intro":
        Bintro.B()

    else:
        print "Invalid Exercise"
