One night in summer, the frog said: "I have a good appetite today, and I ate \overline{abba} mosquitoes in total." The spider said: "You brag, I will count \overline{aca} mosquitoes for you." 4 legs, calculated in quaternary, and spiders have eight legs, calculated in octal, so it is all right, then please smart children calculate how many mosquitoes the frog ate at least according to our human decimal system.
夏季的一天晚上，青蛙说："我今天胃口好，一共吃了\overline{abba}只蚊子，"蜘蛛说："你吹牛，我替你数是\overline{aca}只蚊子．"原来青蛙有4只腿，按四进制计算，而蜘蛛有八条腿按八进制计算因此都对，那么请聪明的小朋友们按我们人类的十进制算一下，青蛙到底最少吃了多少只蚊子．
<result>65</result>