bb=Decimal(b)
cc=aa+bb
c=str(cc)
-print "cc=",cc
+print("cc=",cc)
time.sleep(1)
</code></script>
<inport name="a" type="string"/>
print("for i in range (" + str(n+1) + "):")
print(" v='a' + str(i)")
print(" tot+=Decimal(eval(v))")
- print("print tot")
+ print("print(tot)")
print("result=str(tot)")
print("ref=Decimal(2)**" + str(n))
print("reference=str(ref)")