string matching - excel partial match in reverse -


i have 2 columns. 1 has values like:

0008347_abcd 2008756_abgr 0008746_gss1 .......

and second column 4 digit numbers of above column entries partially match i.e. 

8347 8746 ...

i want find of first column entries have partially matching entry in second column. can return (true false, 0 1), want find them. in above example flag first , third values. there might multiple entries in column 1 match 1 entry in column 2 , flag them all.

the first column has 3346 entries , second 334. can me in excel?

this give 1s , 0s:

=sumproduct(1*(isnumber(search($c$1:$c$2,a1))))

enter image description here

for true/false:

=sumproduct(1*(isnumber(search($c$1:$c$2,a1))))>0

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