t= 0 1 2 3 4 5 6 7 8 9
i=$(STDIN)
$(foreach d,$t,$(eval i:=$$(subst $d, $d,$$i)))$(foreach ,$t$t$t$t,$(info $(if $(findstring $(word 2,$i),$(word 3,$i)),$(word 3,$i),$(word 4,$i)))$(eval i:=$$(wordlist 7,999,$$i)))