data:image/png;base64,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data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAeAAAAFoCAYAAACPNyggAAAOhUlEQVR4Xu3VwQkAAAjEMN1/abewn7jAQRC64wgQIECAAIF3gX1fNEiAAAECBAiMAHsCAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQICLAfIECAAAECgYAAB+gmCRAgQICAAPsBAgQIECAQCAhwgG6SAAECBAgIsB8gQIAAAQKBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECAiwHyBAgAABAoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQIHLFxAWmhEwHPAAAAAElFTkSuQmCCTake any number of input lists, and create a new list containing the items of the input lists. So
APPEND [A B] [C D]
where the [,,,] are lists reports the list
[A B C D]
not [[A B] [C D]].11111upperloweritemC,B,D,A,F0