a = 00
r = 00
a = 01
r = ffffffff00000001000000000000000000000000fffffffffffffffffffffffe
a = ffffffff00000001000000000000000000000000fffffffffffffffffffffffe
r = 01
a = 02
r = ffffffff00000001000000000000000000000000fffffffffffffffffffffffd
a = ffffffff00000001000000000000000000000000fffffffffffffffffffffffd
r = 02
a = 03
r = ffffffff00000001000000000000000000000000fffffffffffffffffffffffc
a = ffffffff00000001000000000000000000000000fffffffffffffffffffffffc
r = 03
a = ffffffff00000001000000000000000000000000fffffffffffffffffffffffe
r = 01
a = 01
r = ffffffff00000001000000000000000000000000fffffffffffffffffffffffe
a = 7fffffff800000008000000000000000000000007fffffffffffffffffffffff
r = 7fffffff80000000800000000000000000000000800000000000000000000000
a = 7fffffff80000000800000000000000000000000800000000000000000000000
r = 7fffffff800000008000000000000000000000007fffffffffffffffffffffff
a = 7fffffff80000000800000000000000000000000800000000000000000000000
r = 7fffffff800000008000000000000000000000007fffffffffffffffffffffff
a = 7fffffff800000008000000000000000000000007fffffffffffffffffffffff
r = 7fffffff80000000800000000000000000000000800000000000000000000000
a = 8000000000000000000000000000000000000000000000000000000000000000
r = 7fffffff00000001000000000000000000000000ffffffffffffffffffffffff
a = 7fffffff00000001000000000000000000000000ffffffffffffffffffffffff
r = 8000000000000000000000000000000000000000000000000000000000000000
a = ffffffff00000001000000000000000000000000ffffffffffffffffffffffff
r = 00