program main
    implicit none
    integer::a,i,j
    read*,a
    a=a/10!a=1が6分
    i=10+(a/10)
    j=mod(a*6,60)
    write(*,"(i0)",advance="no")(i/10)
    write(*,"(i0)",advance="no")mod(i,10)
    write(*,"(a)",advance="no")":"
    write(*,"(i0)",advance="no")j/10
    write(*,"(i0)",advance="no")mod(j,10)
    print*,""
end program