0,0xx15,0`;0,0xxxxxxxxxxxxx
15,0,+'0,0xxxxx12,0{~.-.~}0,0xx
15,0+.,.+'`14,0\ 12,0(  )0,0xxx
0,0xxxxxxxxx12,0()0,0xxx12,0()0,0xx
2,00,0xxxxxxxx12,0(_)-(_)0,0xx