Write the systematic IUPAC names of the following compounds :
`H-overset(O) overset(||) C-overset(O ) overset(||) C - H`

Explanation

To determine the systematic IUPAC name of the given compound, we need to analyze its structure step by step.

### Step 1: Identify the Structure
The given structure is represented as `H-overset(O) overset(||) C-overset(O) overset(||) C - H`. This indicates that we have a compound with two carbon atoms, each bonded to an oxygen atom via a double bond, which suggests the presence of carbonyl groups.

### Step 2: Determine the Functional Groups
From the structure, we can see that both carbon atoms are attached to carbonyl groups (C=O). This indicates that the compound is a type of aldehyde, specifically a dialdehyde since there are two aldehyde groups.

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