solo :
1:-----------5-10-12----------------------------5-10-12-14-12-14--------
2:5-7-5-7------------10-12-10-7-5-7-5-7---------------------------10-7-

1:-----------5-10-12-12-14------------------------------5-10-12-14-12-14
2:5-7-5-7---------------------12s10-10s7--5-7-5-7-------------------------

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