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>perl -le "for(0x1p+60, 0x1p+60, 0x1p+60) { print $_ + 1 }" 1.15292150460685e+18 1152921504606846977 1152921504606846977
>perl -MDevel::Peek -le "for(0x1p+60, 0x1p+60, 0x1p+60) { Dump $_ + 1 +}"