1.

बज ST ‘L ‘S 'इइBIE bh D b IBELEW)

Answer»

1+3=4 now 4+3=7, again 1+7=8 now 8+7=15, again 1+15=16 now 16+15=31, again 1+31=32 now 31+32=63 so it's last no is 63



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