bitofstrings$=$input$("$enter the octal strings"$)$

decimal$=0$

exponent$=$len$($bitofstrings$)-1$

for i in range$($len$($bitofstrings$))$:

$$ decimal$=$decimal$+$int$($bitofstrings$[$i$])*8**$exponent

$$ exponent$=$exponent$-1$

print$("$the decimal value is$",$ decimal$)$

whats wrong with this code?