recu=0 retrait=0 retire=0 retrait=0
retire=0 retrait=0 retire=0 retrait=0
retire=0 retrait=0 retire=0 retrait=0
retire=0 retrait=0 retire=0  depose=0
recu=1  depose=1 recu=2  depose=2
recu=3  depose=3 recu=4  depose=4
recu=5  retrait=0 retire=5  depose=5
recu=6  depose=6 recu=7  depose=7
recu=8  depose=8 recu=9  depose=9
retrait=5 retire=9 retrait=9 retire=9