A+B+C=61 .....1A+C+D=71 ......2A+B+D=62 ......3B+C+D=64 .......41+2+3+4: 3A+3B+3C+3D=258 A+B+C+D=86 ....**-1 D=25*-2 B=15*-3 C=24*-4 A=22
B=15 D=25 C24 A=22
