#include<bits/stdc++.h>
using namespace std;
int a;
int main() {
	while (1) {
		cout << "你需要什么" << endl << "计算器按1" << endl << "计算幂次方按2" << endl << "计算绝对值按3" << endl << "开平方按4" << endl << "开立方按5" << endl << "比较大小按6" << endl << "排序按7" << endl<<"时间换算按8"<<endl<<"进制转换按9"<<endl;
		cin >> a;
		if (a == 1) {
			double a, c;
			char b;
			scanf("%lf%c%lf", &a, &b, &c);
			if (b == '*') {
				cout << a*c;
				
			} else if (b == '+') {
				cout << a + c;
				
			} else if (b == '-') {
				
				cout << a - c;
			} else if (b == '/') {
				
				if (c == 0) {
					cout << "错误";
					
				} else {
					cout << a / c;
				}
			}
		} else if (a == 2) {
			int a, b;
			cin >> a >> b;
			cout << pow(a, b);
			
		} else if (a == 3) {
			int a;
			cin >> a;
			cout << abs(a);
			
		} else if (a == 4) {
			long long a;
			cin >> a;
			cout << sqrt(a);
			
		} else if (a == 5) {
			long long a;
			cin >> a;
			cout << cbrt(a);
			
		} else if (a == 6) {
			long long a, b, c;
			cin >> a >> b;
			c = max(a, b);
			if (c == a) {
				cout << ">";
				
			} else if (c == b) {
				cout << '<';
				
			} else {
				cout << "=";
			}
			
		} else if (a == 7) {
			int a, b, c[1000];
			cout << "升序输出按1"<<endl;
			cout << "降序输出按2"<<endl;
			cin >> b;
			cin >> a;
			for (int i = 1; i <= a; i++) {
				cin >> c[i];
				
			}
			for (int i = 1; i <= a; i++) {
				for (int j = i; j <= a; j++) {
					if (c[i] < c[j]) {
						swap(c[i], c[j]);
						
					}
					
				}
				
			}
			if (b == 1) {
				for (int i = 1; i <= a; i++) {
					cout << c[i] << " ";
					
				}
				
			} else if (b == 2) {
				for (int i = a; i >= 1; i--) {
					cout << c[i] << " ";
					
				}

			}
			cout << endl;
			
		}
		else if(a==8){
			int fen,shi,fen1,miao;
			cout<<"输入单位时间为分的时间:";
			cin>>fen;
			shi=fen/60;
			fen1=fen%60;
			if(shi==0){
				cout<<fen;
				//TODO
			}
			else {
				cout<<shi<<"时"<<fen1<<"分"<<endl;
			}
			//TODO
		}
		else if(a==9){
			int a,b,c,d;
			cout<<"8进制按1"<<endl<<"16进制按2"<<endl;
			cin>>a;
			cin>>b;
			if(a==1){
				cout<<std::oct<<b;
				//TODO
			}
			else if(a==2){
				cout<<std::hex<<b;
				//TODO
			}
		}
		
	}
	return 0;
}