// Problem: C - CCPC String
// Contest: Virtual Judge - 20231001模拟训练
// URL: https://vjudge.net/contest/584955#problem/C
// Memory Limit: 1014 MB
// Time Limit: 1000 ms
// Author: jimmyywang

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define f(i,a,b) for(ll i=a;i<=b;i++)
#define wt int tt=d;while(tt--)
#define py puts("Yes")
#define pn puts("No")
#define pritnf printf
#define edfl endl
#define fe(i,e) for(int i=0;i<e.size();i++)
#define vi vector<ll>
inline ll rd() {
	ll x=0,f=1;
	char c=getchar();
	while(!isdigit(c)){if(c=='-')f=-1;c=getchar();}
	while(isdigit(c))x=x*10+c-'0',c=getchar();
	return x*f;
}
namespace binom{
	const ll Lim=300010,mod=998244353;
	ll jc[Lim],inv[Lim],inc[Lim];
	void pre(){
		jc[0]=jc[1]=inc[0]=inc[1]=inv[0]=inv[1]=1;
		f(i,2,Lim-1)jc[i]=jc[i-1]*i%mod,inv[i]=(mod-mod/i)*inv[mod%i]%mod,
		inc[i]=inc[i-1]*inv[i]%mod;
	}ll C(ll n,ll m){if(n<0||m<0||n<m)return 0;return jc[n]*inc[m]%mod*inc[n-m]%mod;}
}
// using namespace binom;
ll dx[4]={0,1,0,-1};
ll dy[4]={1,0,-1,0};
#define d rd()
#define pb push_back
const ll N=300010;
struct edge{ll v,w,nx;}e[N<<1];
ll hd[N],cnt;
void add(ll u,ll v,ll w){e[++cnt]=(edge){v,w,hd[u]};hd[u]=cnt;}
ll qp(ll a,ll b,ll p){
	ll ans=1;while(b){
		if(b&1)ans=ans*a%p;
		a=a*a%p;b>>=1;
	}return ans;
}ll n,m;
char c[1000010];
vi p;
int main(){
	wt{
		cin>>c+1;n=strlen(c+1);
		p.clear();p.pb(0);
		f(i,1,n)if(c[i]=='p')p.pb(i);
		p.pb(n+1);ll res=0;
		for(int i=1;i<p.size()-1;i++){
			ll pos=p[i],x=p[i-1],y=p[i+1];
			res+=min((pos-x-1)/2,y-pos-1);
		}f(i,1,n)if(c[i]=='?'){
			ll x=lower_bound(p.begin(),p.end(),i)-p.begin();
			ll y=x-1;
			res+=min((i-p[y]-1)/2,p[x]-i-1);
		}cout<<res<<endl;
	}
	return 0;
}