You may remember me from this : 

https://groups.google.com/forum/#!topic/comp.lang.python/PIkUno3avkw



I need help to increase the efficiency of this code : 


global repeat
repeat=1
def main():
    c=int(raw_input("How many numbers do you want to work? (Min. 2 Max. 3) "))
    if c==2:
        x=int(raw_input("Enter the first number to be worked "))
        y=int(raw_input("Enter the second number to be worked "))
    elif c==3:
        x=int(raw_input("Enter the first number to be worked "))
        y=int(raw_input("Enter the second number to be worked "))
        z=int(raw_input("Enter the third number to be worked "))
    else:
        print "Invalid input.";raw_input("Press <enter> to close this 
window");exit()    
    p=int(raw_input("Do you want to divide, subtract, add or multiply these 
numbers? (1=divide, 2=subtract, 3=add, 4=multiply) "))
    if p==1 and c==2:
        print "The result is : ",x/y
        repeat=int(raw_input("Do you want to calculate for more numbers? Yes=1 
No=2 "))
        if repeat==1:
            main()
    elif p==1 and c==3:
        print "The result is : ",x/y/z
        repeat=int(raw_input("Do you want to calculate for more numbers? Yes=1 
No=2 "))
        if repeat==1:
            main()
    elif p==2 and c==2:
        print "The result is : ",x-y
        repeat=int(raw_input("Do you want to calculate for more numbers? Yes=1 
No=2 "))
        if repeat==1:
            main()
    elif p==2 and c==3:
        print "The result is : ",x-y-z
        repeat=int(raw_input("Do you want to calculate for more numbers? Yes=1 
No=2 "))
        if repeat==1:
            main()
    elif p==3 and c==2:
        print "The result is : ",x+y
        repeat=int(raw_input("Do you want to calculate for more numbers? Yes=1 
No=2 "))
        if repeat==1:
            main()
    elif p==3 and c==3:
        print "The result is : ",x+y+z
        repeat=int(raw_input("Do you want to calculate for more numbers? Yes=1 
No=2 "))
        if repeat==1:
            main()
    elif p==4 and c==2:
        print "The result is : ",x*y
        repeat=int(raw_input("Do you want to calculate for more numbers? Yes=1 
No=2 "))
        if repeat==1:
            main()
    elif p==4 and c==3:
        print "The result is : "+str(x*y*z) 
        repeat=int(raw_input("Do you want to calculate for more numbers? Yes=1 
No=2 "))
        if repeat==1:
            main()
    else:
        repeat=int(raw_input("Invalid Input. Please read instructions properly. 
Would you like to try again? Yes=1 No=2 "))
        if repeat==1:
            main()
        else:
            exit()
main()



Is there any way to make it smaller? It does it's job, but I want it to look 
smaller, more efficient.
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