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import std.stdio;
import std.string;
import std.conv;
import std.container : SList;
import std.container : DList;
import std.variant;
alias Token = Algebraic!(int, string);
auto dataStack = SList!int();
bool defMode = false;
string defModeWord = "";
DList!Token[string] wordMap;
void push(ref DList!Token stack, int value) {
stack.insertBack(Token(value));
}
void push(ref DList!Token stack, string word) {
stack.insertBack(Token(word));
}
void push(ref DList!Token[string] map, int value) {
map[defModeWord].push(value);
}
void push(ref DList!Token[string] map, string word) {
if ( defModeWord == "" ) {
defModeWord = word;
map[defModeWord] = DList!Token();
} else {
map[defModeWord].push(word);
}
}
void push(ref SList!int stack, int value) {
if ( defMode ) {
wordMap.push(value);
} else {
stack.insertFront(value);
}
}
void push(ref SList!int stack, string word) {
if ( defMode ) {
if ( word == ";" ) {
defMode = false;
defModeWord = "";
} else {
wordMap.push(word);
}
} else {
switch ( word ) {
case "ยง":
defMode = true;
defModeWord = "";
break;
case "+":
auto a = stack.pop();
auto b = stack.pop();
stack.push(a + b);
break;
case "*":
auto a = stack.pop();
auto b = stack.pop();
stack.push(a * b);
break;
case ".":
writeln(stack.front);
break;
default:
foreach ( token; wordMap[word] ) {
if ( token.type == typeid(int) ) {
stack.push(*token.peek!int);
} else {
stack.push(*token.peek!string);
}
}
}
}
}
int pop(ref SList!int stack) {
auto x = stack.front;
stack.removeFront;
return x;
}
void main() {
while ( !stdin.eof ) {
foreach ( word; stdin.readln.split ) {
if ( word.isNumeric ) {
dataStack.push(parse!int(word));
} else {
dataStack.push(word);
}
}
}
}
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