#include <fstream>
#include <cstring>
   
int main() {
	char const * const inputFile = "cifra.in",
											 * const outputFile = "cifra.out";
	std::ifstream in(inputFile);
	std::ofstream out(outputFile);
	
	const int partialSum[] = {
    0,1,5,2,8,3,9,2,8,7,7,8,4,7,3,8,4,1,5,4,4,5,9,6,2,7,3,6,2,1,1,2,8,1,7,2,8,5,9,8,8,9,3,0,6,1,7,0,6,5,5,6,2,5,1,6,2,9,3,2,2,3,7,4,0,5,1,4,0,9,9,0,6,9,5,0,6,3,7,6,6,7,1,8,4,9,5,8,4,3,3,4,0,3,9,4,0,7,1,0,0
  };
	
	int t;
	in >> t;
	char buffer[128];
	for (int i = 0; i < t && in >> buffer; ++i) {
			int size = strlen(buffer), n = buffer[size - 1] - '0';
			if (size > 1)
				n += 10 * (buffer[size - 2] - '0');
			out << (partialSum[n]) << std::endl;
		}
		
	in.close();
	out.close();
	return 0;
}