(no subject)

[Campbell Kwok]

Hi, I am trying to write a program for my school homework and I'm a little 
stuck. The homework have to do with barcodes and I need to read the barcode, 
then add up all the odd number positions(eg a barcode of 123456789012, then 
the odd is 1,3,5,7,9,1) I do not know how to get the odd number positions 
out of that str of numbers. Please help me

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