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What your hob looks like?
Electric
hotplate
④④
Fast
burner
①①
Semi-fast
burner
②②
Auxiliary
burner
④④
Fast
burner
①①
①①
Knob for back right gas ring
②②
Knob for back left gas ring
③③
Knob for front left gas ring
④④
Knob for front right gas ring
Extra-fast
burner
③③
Auxiliary
burner
④④
Extra-fast
burner
③③
Semi-fast
burner
②②
Auxiliary
burner
④④
Fast
burner
①①
Double-crown
burner
③③
①①
Knob for back right gas ring
②②
Knob for back left gas ring
③③
Knob for front left gas ring
④④
Knob for front right gas ring
Warning light electric hotplate
①①
Knob for back right gas ring
②②
Knob for front right gas ring
④④
Knob for the back left hotplate
③③
Knob for front left gas ring