Convert each input number from a special base-4 representation to decimal, add them, and print the result in decimal.
You are given two numbers written in a strange numeral system.
Each number uses digits from 0 to 3, but the value of a digit depends on its position as if the number were written in base 4.
Your task is to read the two numbers, interpret them as base-4 values, add them, and output the sum in decimal.
For a number like 321:
Do this for both input numbers, then compute their sum.
A single line contains two space-separated integers a and b.
Each integer is written using only digits 0 to 3 and should be interpreted as a base-4 number.
Print one integer — the sum of the two numbers in decimal.
0 to 3Example 1
Input
10 2
Output
6
Explanation
10 in base 4 equals 4 in decimal, and 2 equals 2. Their sum is 6.
Example 2
Input
321 3
Output
60
Explanation
321 in base 4 is 3*16 + 2*4 + 1 = 57, and 3 is 3. The sum is 60.
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