a="malayalam\0"
i=0
digits=0
while(a[i]!='\0') do
i=i+1
end
digits=i
j=digits-1
flag=1
while(i<j) do
if(a[i]!=a[j]) then
flag=0
end
i=i+1
j=j-1
end
if(flag==1) then
print "yes"
else
print "no"
end
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