#include 
     
      #include 
      
       #include 
       
        #include 
        
         using namespace std;char s[400000];  //存储输入 struct Big{int a[10000];int x;};//重载    + Big operator + (Big A,Big B){int x=max(A.x,B.x);for(int i=1;i<=x;i++){A.a[i]+=B.a[i];A.a[i+1]+=A.a[i]/10;A.a[i]%=10;}return A;}//重载    - Big operator - (Big A,Big B){int x=max(A.x,B.x);for(int i=1;i<=x;i++){A.a[i]-=B.a[i];if(A.a[i]<0){A.a[i+1]-=1;A.a[i]+=10;}}return A;}bool operator < (Big A,Big B) //重载  <    用于  小数 - 大数 {if(A.x!=B.x)return A.x
         
          =1;i--){if(A.a[i]!=B.a[i])return A.a[i]
          
           0;i--){int q=C.a[i];if(q!=0&&h==0)h=1;if(h==1)cout<
           
            <<0;}cout<