use strict;
print ord("0") & ord("0"), "\n";#48, which is "0"
print ord("0") & ord("1"), "\n";#48, which is "0"
print ord("1") & ord("0"), "\n";#48, which is "0"
print ord("1") & ord("1"), "\n";#49, which is "1"
print ord("0") | ord("0"), "\n";#48, which is "0"
print ord("0") | ord("1"), "\n";#49, which is "1"
print ord("1") | ord("0"), "\n";#49, which is "1"
print ord("1") | ord("1"), "\n";#49, which is "1"