#include using namespace std; int main() { int a,b,n,m=70; scanf("%d",&a); a=a-69-39; b=a/69; for(int i=b;i>=0;i--) { for(int j=0;j<=a/39+1;j++) { n=a-i69-j39; if(n<0) { n=n+39; break; } } if(m>n) m=n; } printf("%d",m); return 0; }