## Syntax
```mermaid
%%{init: {
'theme': 'base',
'flowchart': { 'padding': '10' },
'themeVariables': {
'fontSize': '11px',
'fontFamily': 'Arial'
}
}}%%
flowchart LR
Start((START)) --> CONCAT[CONCAT]:::quoted
CONCAT -->| | CONCAT_OP[CONCAT_OP]:::quoted
CONCAT_OP --> End((END))
```
## concat_func
```mermaid
%%{init: {
'theme': 'base',
'flowchart': { 'padding': '10' },
'themeVariables': {
'fontSize': '11px',
'fontFamily': 'Arial'
}
}}%%
flowchart LR
Start((START)) --> CONCAT_FUNC[CONCAT_FUNC]:::quoted
CONCAT_FUNC -->| | CONCAT[CONCAT]:::quoted
CONCAT --> End((END))
```