Implementation
const HIGH_COMBINING = [
[0x101FD, 0x101FD],
[0x102E0, 0x102E0],
[0x10376, 0x1037A],
[0x10A01, 0x10A03],
[0x10A05, 0x10A06],
[0x10A0C, 0x10A0F],
[0x10A38, 0x10A3A],
[0x10A3F, 0x10A3F],
[0x10AE5, 0x10AE6],
[0x10D24, 0x10D27],
[0x10F46, 0x10F50],
[0x11001, 0x11001],
[0x11038, 0x11046],
[0x1107F, 0x11081],
[0x110B3, 0x110B6],
[0x110B9, 0x110BA],
[0x110BD, 0x110BD],
[0x110CD, 0x110CD],
[0x11100, 0x11102],
[0x11127, 0x1112B],
[0x1112D, 0x11134],
[0x11173, 0x11173],
[0x11180, 0x11181],
[0x111B6, 0x111BE],
[0x111C9, 0x111CC],
[0x1122F, 0x11231],
[0x11234, 0x11234],
[0x11236, 0x11237],
[0x1123E, 0x1123E],
[0x112DF, 0x112DF],
[0x112E3, 0x112EA],
[0x11300, 0x11301],
[0x1133B, 0x1133C],
[0x11340, 0x11340],
[0x11366, 0x1136C],
[0x11370, 0x11374],
[0x11438, 0x1143F],
[0x11442, 0x11444],
[0x11446, 0x11446],
[0x1145E, 0x1145E],
[0x114B3, 0x114B8],
[0x114BA, 0x114BA],
[0x114BF, 0x114C0],
[0x114C2, 0x114C3],
[0x115B2, 0x115B5],
[0x115BC, 0x115BD],
[0x115BF, 0x115C0],
[0x115DC, 0x115DD],
[0x11633, 0x1163A],
[0x1163D, 0x1163D],
[0x1163F, 0x11640],
[0x116AB, 0x116AB],
[0x116AD, 0x116AD],
[0x116B0, 0x116B5],
[0x116B7, 0x116B7],
[0x1171D, 0x1171F],
[0x11722, 0x11725],
[0x11727, 0x1172B],
[0x1182F, 0x11837],
[0x11839, 0x1183A],
[0x119D4, 0x119D7],
[0x119DA, 0x119DB],
[0x119E0, 0x119E0],
[0x11A01, 0x11A0A],
[0x11A33, 0x11A38],
[0x11A3B, 0x11A3E],
[0x11A47, 0x11A47],
[0x11A51, 0x11A56],
[0x11A59, 0x11A5B],
[0x11A8A, 0x11A96],
[0x11A98, 0x11A99],
[0x11C30, 0x11C36],
[0x11C38, 0x11C3D],
[0x11C3F, 0x11C3F],
[0x11C92, 0x11CA7],
[0x11CAA, 0x11CB0],
[0x11CB2, 0x11CB3],
[0x11CB5, 0x11CB6],
[0x11D31, 0x11D36],
[0x11D3A, 0x11D3A],
[0x11D3C, 0x11D3D],
[0x11D3F, 0x11D45],
[0x11D47, 0x11D47],
[0x11D90, 0x11D91],
[0x11D95, 0x11D95],
[0x11D97, 0x11D97],
[0x11EF3, 0x11EF4],
[0x13430, 0x13438],
[0x16AF0, 0x16AF4],
[0x16B30, 0x16B36],
[0x16F4F, 0x16F4F],
[0x16F8F, 0x16F92],
[0x1BC9D, 0x1BC9E],
[0x1BCA0, 0x1BCA3],
[0x1D167, 0x1D169],
[0x1D173, 0x1D182],
[0x1D185, 0x1D18B],
[0x1D1AA, 0x1D1AD],
[0x1D242, 0x1D244],
[0x1DA00, 0x1DA36],
[0x1DA3B, 0x1DA6C],
[0x1DA75, 0x1DA75],
[0x1DA84, 0x1DA84],
[0x1DA9B, 0x1DA9F],
[0x1DAA1, 0x1DAAF],
[0x1E000, 0x1E006],
[0x1E008, 0x1E018],
[0x1E01B, 0x1E021],
[0x1E023, 0x1E024],
[0x1E026, 0x1E02A],
[0x1E130, 0x1E136],
[0x1E2EC, 0x1E2EF],
[0x1E8D0, 0x1E8D6],
[0x1E944, 0x1E94A],
[0xE0001, 0xE0001],
[0xE0020, 0xE007F],
[0xE0100, 0xE01EF]
];