#include<iostream> #include<cstring> using namespace std; int main(){ char a[31], *p,t; int i,count = 0,n; cin >> a; n = strlen(a); p = a; t = *(p+n-1); for(i = 0; i < n; i++) { if(t == *p) count++; p++; } cout << count <<endl; return 0; }