ืฉืื ืื ืืชื ืืืืช
ืชืืืื ืืืืขืช ืืืืข ืฉืืืคืฉืจ ืฉืื ืื ืืชื ืืืืช.
#ืจืฆื1ื ื
ืงืืืงืก ืืืืช ืจืฆืืื ืืืืช
ืืงืกืืงืื ืืกืจ ืืืชืืจื ืืจืฆืืื ืืืืช
ืืงืืืงืก ืืืกืจ ืืืชืืจื ืืจืฆืืื ืืืืช โ ืืืืื
ืืขืจืืช ืืงืืช ืงืจืืื: < 1 ืฉืืืงืช'ืืชื, ืืคืขื ืงืืฆืจืชื
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