1:1+1+1(1+1:1-1)1+1-1:(1+11-1)
= 1+1+1(1+1:0)1+1-1:(1+11-1)
= 1+1+1(1+infinity)1+1-1:(1+11-1)
= 1+1+1(infinity)1+1-1:(1+11-1)
= 1+1+infinity1+1-1:(1+11-1)
= 1+1+infinity+1-1:(1+1*1-1)
= 1+1+infinity+1-1:(1+1-1)
= 1+1+infinity+1-1:(2-1)
= 1+1+infinity+1-1:1
= 1+1+infinity+1-1
= 3+infinity-1
= infinity

Therefore, the answer is infinity.