Given a range [l r] find the sum of last digits of fibonacci numbers between l and r. i.e , last(fib(l))+last(fib(l+1)) .... last(fib(r)),
where last(fib(a)) denotes last digit of ath fibonacci number.
1<=l<=r<=1e9
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Given a range [l r] find the sum of last digits of fibonacci numbers between l and r. i.e , last(fib(l))+last(fib(l+1)) .... last(fib(r)),
where last(fib(a)) denotes last digit of ath fibonacci number.
1<=l<=r<=1e9
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