magic

.constant
OBJREF 0x30
.end-constant

.main
.var
    a
    b
    temp
    des
    simt
.end-var

start:  IN
    DUP

    BIPUSH 0x2B
    IF_ICMPEQ goto
    DUP

    BIPUSH 0x2D
    IF_ICMPEQ goto3
    DUP

    BIPUSH 0x2A
    IF_ICMPEQ goto4
    DUP

    BIPUSH 0x3D
    IF_ICMPEQ goto2
    GOTO start

goto:   POP
    INVOKEVIRTUAL sudek
    GOTO start
goto3:  POP
    INVOKEVIRTUAL atimk
    GOTO start

goto4:
    INVOKEVIRTUAL daugink
    GOTO start
goto2:  POP
    OUT
    HALT
.end-main

.method sudek(a, b)
        ILOAD a
        BIPUSH 0x30
        ISUB
        ISTORE a
        ILOAD b
        BIPUSH 0x30
        ISUB
        ISTORE b
        ILOAD a
        ILOAD b
        IADD
        IRETURN
.end-method

.method atimk(a, b)
        ILOAD a
        BIPUSH 0x30
        ISUB
        ISTORE a
        ILOAD b
        BIPUSH 0x30
        ISUB
        ISTORE b
        ILOAD a
        ILOAD b
        ISUB
        IRETURN
.end-method

.method daugink(a, b, temp)
        ILOAD a
        BIPUSH 0x30
        ISUB
        DUP
        ISTORE a

        ILOAD b
        BIPUSH 0x30
        ISUB
        ISTORE temp
        IINC temp -1
start:  ILOAD temp
        IFEQ end
        ILOAD a
        IADD
        IINC temp -1
        GOTO start
end:    IRETURN
.end-method