for(0..$#_){if($_[$_]=~/X/){$t+=10+($_[$_+1]=~/X/?10:$_[$_+1])+($_[$_+2]=~/X/?10:($_[$_+2]=~/\//?10-$_[$_+1]:$_[$_+2]))}if($_[$_+1]=~/\//){$t+=10+($_[$_+2]=~/X/?10:$_[$_+2]);splice@_,$_+1,1;last if!defined$_[$_+2]}else{$t+=$_[$_]}}$t