#include<iostream>
#include<cstring>
using namespace std;
void byteorder();
int main()
{
    byteorder();

    return 0;
}
void byteorder()
{
    union{
        short value;
        char union_bytes[sizeof(short)];
    }test;
    test.value = 0x0102;//二进制为100000010
    /*当小端取低字节8位二进制00000010转换就是2，再取一位就是1
        同理大端就是1,2
    */
    if((test.union_bytes[0]==1)&&test.union_bytes[1]==2)
        cout <<"big endian"<<endl;
    else if((test.union_bytes[0]==2)&&(test.union_bytes[1])==1)
        cout <<"little endian"<<endl;
    else 
        cout <<"unkonwn"<<endl;

}