i128

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inline __int128 read(){
__int128 x=0,f=1;
char ch=getchar();
while(ch<'0'||ch>'9'){
if(ch=='-')
f=-1;
ch=getchar();
}
while(ch>='0'&&ch<='9'){
x=x*10+ch-'0';
ch=getchar();
}
return x*f;
}

inline void print(__int128 x){
if(x<0){
putchar('-');
x=-x;
}
if(x>9)
print(x/10);
putchar(x%10+'0');
}