#include <iostream>
using namespace std;
 
int main() {
	int a[128]={1,16,2,51,50,115,13,120,10,100,64,58,91,61,62,59,60,116,90,3,11,9,24,23,4,22,19,72,8,67,73,74,68,71,70,69,75,76,78,117,84,81,126,82,83,101,102,63,119,96,109,88,87,86,85,110,104,125,89,92,99,65,113,66,55,124,52,5,56,121,57,54,44,103,45,48,118,53,47,49,46,94,112,111,107,127,93,95,123,97,98,32,29,28,122,33,25,26,38,39,42,34,43,40,35,37,36,41,14,12,30,27,31,80,79,77,18,21,17,20,108,15,106,6,114,105,7,1};
 
 
int v[128]={0};
 
int ok=0;
 
 
for(int i=0;i<=127;i++){v[a[i]]++;}
for(int i=1;i<=127;i++){
if(i==1){
if(v[1]==2){ok++;}
}
else{
if(v[i]==1){ok++;}
}
}
 
cout<<ok<<endl;
 
	return 0;
}

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