Kaučuk Command Parser

The Kaučuk program supports only the following three commands:

• $\texttt{section}$: Create a new level-1 title. The numbering starts from $1$.
• $\texttt{subsection}$: Create a new level-2 title. For each section, numbering starts at $1$, forming numbers like $1.1$, $1.2$, etc.
• $\texttt{subsubsection}$: Create a new level-3 title. For each subsection, numbering starts at $1$, forming numbers like $1.1.1$, $1.1.2$, etc.

Given $n$ commands along with their title names, output all title numbers together with their corresponding names.

inputFormat

The first line contains an integer $n$ representing the number of commands. Each of the following $n$ lines consists of a command (one of "section", "subsection", or "subsubsection") followed by a space and the title name. The title name may contain spaces.

outputFormat

For each command, output a single line with the title number and the title name separated by a space. The title number is generated according to the nesting rules:

• For a section command, output the section number (e.g. 1).
• For a subsection command, output the section number, a dot, and the subsection number (e.g. 1.1).
• For a subsubsection command, output the section number, a dot, the subsection number, another dot, and the subsubsection number (e.g. 1.1.1).

sample

3
section Introduction
subsection Background
subsubsection Details

1 Introduction
1.1 Background
1.1.1 Details