Read the colors. Build the line.
A card line prints its tiles in colors. The color does exactly one job: it tells you which groups are the same suit and which are a different one.
It never tells you which suit. That part is yours.
Tap a group, then tap a tile, until you have built the line. When the last tile goes down a Submit button appears under your hand. Nothing is sent until you press it, so change as much as you like first.
If you get it right, you will often be asked to build it again, with the tiles you just used marked, so you have to find another way through.
No clock. No penalty for a wrong guess.