obj bridge
obj bridge x+1
obj bridge x+2
obj bridge x+3
obj bridge x+4

obj bridge x+5
obj bridge x+6
obj bridge x+7
obj bridge x+8
obj bridge x+9

obj bridge x+10
obj bridge x+11
obj bridge x+12
obj bridge x+13
obj bridge x+14

obj bridge x+15
obj bridge x+16
obj bridge x+17
obj bridge x+18
obj bridge x+19

obj bridge x+20
obj bridge x+21
obj bridge x+22
obj bridge x+23
obj bridge x+24

obj bridge x+25
obj bridge x+26
obj bridge x+27
obj bridge x+28
obj bridge x+29