#include <cmath> #include <cstdint> #include <iostream> #include <unordered_map> using namespace std; int main() { string s; unordered_map<char,int> umap={{'0',0},{'1',1},{'2',2},{'3',3},{'4',4},{'5',5},{'6',6},{'7',7}, {'8',8},{'9',9},{'A',10},{'B',11},{'C',12},{'D',13...