#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<string>
#define I inline
#define int long long 
#define inf 1e7
#define For(a,b,c) for(int i=a;i<b;i+=c)
#define Rep(a,b,c) for(int i=a;i>b;i+=c)
using namespace std;

string s[6];

I int qsum(int a,int b,int c=1) {
	if(c<0) {
		if(a<=b) return 0;
		int cnt=(b-a)/c;
		if((b-a)%c==0) cnt--;
		int mx=a+cnt*c; 
		return (mx+a)*(cnt+1)/2;
	} else {
		if(a>=b) return 0;
		int cnt=(b-a)/c;
		if((b-a)%c==0) cnt--;
		int mx=a+cnt*c;
		return (mx+a)*(cnt+1)/2;
	}
}
I int sum(int a,int b,int c=1) { //cout<<a<<' '<<b<<' '<<c<<endl;
	if(c>0) {
		int res=0;
		for(int i=a;i<b;i+=c) {
			res+=i;
		}
		return res;
	} else {
		int res=0;
		for(int i=a;i>b;i+=c) { //cout<<i<<endl;
			res+=i;
		}
		return res;
	}
}
I bool isc(char x) {
	return x>='a'&&x<='z';
}
I vector<int> deal(string x) {
	vector<int> ret;
	
	int j=0;
	while(x[j]!='(') j++;
	j++;
	
	int numb=0,sig=1;
	if(x[j]=='-') {
		sig=-1;
		j++;
	}
	if(isc(x[j])) {
		ret.push_back(inf);
		j++;
	} else {
		for(;;++j) {
			if(x[j]==','||x[j]==')') break;
			else numb=numb*10+x[j]-'0'; 
		}	
		ret.push_back(sig*numb);
	}
	
	j++; numb=0; sig=1;
	if(x[j]=='-') {
		sig=-1;
		j++;
	}
	if(isc(x[j])) {
		ret.push_back(inf);
		j++;
	} else {
		for(;;++j) {
			if(x[j]==','||x[j]==')') break;
			else numb=numb*10+x[j]-'0'; 
		}	
		ret.push_back(sig*numb);
	}
	
	if(x[j]==')') return ret;
	
	j++; numb=0; sig=1;
	if(x[j]=='-') {
		sig=-1;
		j++;
	}
	if(isc(x[j])) {
		ret.push_back(inf);
		j++;
	} else {
		for(;;++j) {
			if(x[j]==','||x[j]==')') break;
			else numb=numb*10+x[j]-'0'; 
		}	
		ret.push_back(sig*numb);
	}
	
	return ret;
}
signed main() 
{
	for(int i=1;i<=5;++i) getline(cin,s[i]);
//	for(int i=1;i<=5;++i) cout<<s[i]<<endl;
	int ans=0;
	
	vector<int> v1 = deal(s[2]);
	vector<int> v2 = deal(s[3]);
	if(v1.size()==2) v1.push_back(1);
	if(v2.size()==2) v2.push_back(1);
	vector<int> nowv2=v2;
	
	
//	for(auto &t:v1) cout<<t<< ' '; cout<<endl;
//	for(auto &t:v2) cout<<t<<' '; cout<<endl;
	
	if(v1[2]>0) {
		For(v1[0],v1[1],v1[2]) {
			for(int j=0;j<3;++j) {
				if(v2[j]==inf) nowv2[j]=i;
				else nowv2[j]=v2[j];
			}
			for(auto &t:nowv2) //cout<<t<<' '; cout<<endl;
			ans+=qsum(nowv2[0],nowv2[1],nowv2[2]);
		}
	} else {
		Rep(v1[0],v1[1],v1[2]) { //cout<<i<<endl;
			for(int j=0;j<3;++j) {
				if(v2[j]==inf) nowv2[j]=i;
				else nowv2[j]=v2[j];
			}
			ans+=qsum(nowv2[0],nowv2[1],nowv2[2]);
		}
	}
	
	cout<<ans<<endl;
}