=IF(R2C2<>"",MATCH(R2C2,関東地方!R1C1:R1C7,0),0)
=IF(R2C2<>""
,OFFSET(関東地方!R2C1
,0
,MATCH(R2C2,関東地方!R1C1:R1C7,0)-1
,COUNTA(OFFSET(関東地方!R2C1
,0
,MATCH(R2C2,関東地方!R1C1:R1C7,0)-1
,1000
,1
)
)
,1
)
,R1C1
)
MATCH(R2C2,関東地方!R1C1:R1C7,0)-1