$U$12: =T12-S12
$U$13: =T13-S13
$U$14: =T14-S14
$U$15: =T15-S15
$U$16: =T16-S16
$U$17: =T17-S17
$U$18: =T18-S18
$U$19: =T19-S19
$U$20: =T20-S20
$U$21: =T21-S21
$U$22: =T22-S22
$U$23: =T23-S23
$U$24: =T24-S24
$U$25: =T25-S25
$U$26: =T26-S26
$U$27: =T27-S27
$U$28: =T28-S28
$U$29: =T29-S29
