i
doublesingle
singlesingle
double
A
leftRepeatsingle
singlesingle
single
singlesingle
singlesingle
double
B
doublesingle
Repeat
singlesinglesingle
singlesinglesingle
Repeat
singlesingle
singlesinglesingle
Repeat
singlesingle
singlesinglesingle
Repeat
rightRepeat
C
leftRepeatsingle
singlesingle
rightRepeat